I would really consider asking your breeder to do a home visit and watch the two of you interact and see Ava's behavior. Either that or consider sending her back temporarily. I think that would jog her back into better behavior. With all the money you're spending trying to fix the problem I think it'd be 100% worth it to send her back to your breeder who I am sure would offer we assistance and knowledge…
Could either of those be options?
Or, barring that idea, at least send some videos of her behavior and see what the breeder thinks.
Okay, toys that don't come back when "called" need to be kept on a "leash" until they are reliable.
This is what I did with Zest! when she was a baby. We had "blue bird" (a fuzzy toy) on a long string. I'd throw birdie and she'd run out to get it and I'd reel them both in and Z got a treat. (Z is very food motivated, so that helped - a lot). It really didn't take long before Z had a very reliable retrieve. I still (6 yrs later) reward the retrieve more often than not. And what this created is a dog that LOVES to bring me things. (well, until the rabbit incident)
So did blue bird arrive on the string or did you tie a string to her? Ava is also food motivated, so I will try this. We are still working on the leash thing, though, since Ava, like tennis balls and sticks, doesn't always come back…. and sometimes won't even go. Those little feet seem to take root when she is feeling particularly stubborn.
Oh, I had to attach the "leash" to blue bird. It wasn't very attractive, but very functional. (He was a 75% off postEaster toy found at Joann's many, many years ago. But he made really neat chirping noises. At least he used to.) That's the other nice thing about toys an a leash. If the princess doesn't want to fetch it, you don't have to either. 
Lol. She seems wildly independent and it sounds like she's trying very har to be the boss..lol
I can only imagine her and spencer were complete opposites, it sounds like it!! There's a saying I use frequently when I refer to Oakley (especially in the wild days!)
"I didn't necessarily get the dog I wanted, I got the dog I needed"
He was the distraction I desperately needed to deal with a big loss personally, if it wast for having a handful to deal with I'm not sure what I would've done..he was exactly what I needed and now I'm thankful for it..and thankful it's passed!!!
Toys on a leash– I love it! We have a dolphin that I think would love to be chased, fetched and reeled in. Or perhaps I need to find a plush tiara... with maybe a bit of bling befitting the little princess?
And, since you mention it, that fetching toys is MUCH more tiring for the human in residence than it was 15 years ago when Spencer was a pup. Now why would that be?
Just as a thought, have you any contact with any of the other puppies from that litter? Just wondering if it is just her or was the entire litter like she is? Wild and crazy…. same as Ava, Sort of Wild and Crazy... or normal (or as normal as a Basenji puppy can be)?
Oh, yes, Chealsie, Ava thinks she needs to be the boss and is frustrated that her human servants don't agree. The trainer said she has seen huge snarling pitt bulls less alpha than 11-lb Ava. I don't think it was a compliment.
So the day that Ava accepts that she isn't the boss of all of us will probably be the turning point. I'm just not sure what it will take to get her there, other than time.
Spencer was dominant, too– and he was all Basenji; he was just more reasonable about it. And he loved me. Ava loves treats... and chicken necks (and probably rabbits, if she can catch one). 
Just as a thought, have you any contact with any of the other puppies from that litter? Just wondering if it is just her or was the entire litter like she is? Wild and crazy…. same as Ava, Sort of Wild and Crazy... or normal (or as normal as a Basenji puppy can be)?
Nope, no Wild Bunch. Apparently, Miss Ava is the renegade. One of her littermates flew overseas and tolerated the crate without fuss. Tad has her brother and he said both of her parents were easy to train. So little Miss Ava is the headstrong one of the bunch. Wild and beautiful!
Oh, the dolphin sounds perfect. Just cinch him up tight so that the princess can't help him get out of his leash. (B/c the then she can play the keep-away game. something you do NOT want to start.)
She is definitely your wild child!
The vet office was very glad when Loki went home after his neuter…he screamed nearly the entire time and would toss the food bowl sending kibble flying everywhere when they'd try to get him to eat.
I recently bought this for our pups
http://www.amazon.com/Kyjen-Tail-Teaser-Dog-Refill/dp/B0042I5G2I/ref=sr_1_1?ie=UTF8&qid=1363644444&sr=8-1&keywords=kyjen+teaser
It was always hard tiring Loki out until we tied a toy onto a fishing pole and swung that around. The above toy doesn't extend as far of course, and won't stand up to Loki's 23 lb dead weight tactics, but it works for Kaia (and Loki if we can keep him from catching). No fetching required!
Oh, the dolphin sounds perfect. Just cinch him up tight so that the princess can't help him get out of his leash. (B/c the then she can play the keep-away game. something you do NOT want to start.)
Yes, Ava looooves the keep-away game. When I refused to play, she pranced over to the pond and looked straight at me while she dropped the ball into the pond. Dolphin on a leash– coming right up... Thanks for the idea!
I recently bought this for our pups
http://www.amazon.com/Kyjen-Tail-Teaser-Dog-Refill/dp/B0042I5G2I/ref=sr_1_1?ie=UTF8&qid=1363644444&sr=8-1&keywords=kyjen+teaserIt was always hard tiring Loki out until we tied a toy onto a fishing pole and swung that around. The above toy doesn't extend as far of course, and won't stand up to Loki's 23 lb dead weight tactics, but it works for Kaia (and Loki if we can keep him from catching). No fetching required!
I like the part about sitting in the chair while the dog chases! But Loki calmed down, right? And having a second dog probably helps Kaia, keeping her busy and entertained. The trainer did tell me that Ava might do better with a second dog. I just about died– how could I handle two!!!
Loki calmed down once we learned how to effectively tire him out. And on occasion indulge his destructiveness with super cheap stuffed toys
Having Kaia with another dog certainly helps, not that Loki is always fond of it, but tackling him, biting his tail, being a general pest is great entertainment for her. She still gets into mischief, though it's far less than what she would do if we didn't have Loki. And it wasn't until the last couple of weeks that she's begun napping. Poor Loki loves his naps and she'd pester him because if she didn't want to sleep, then he certainly wasn't allowed to sleep.
And 2 is in some ways easier than 1, at least for us. Loki is a very dog loving dog…his first time of going through an agility chute was because he was following another dog. All the others followed a tennis ball....mine, nope, but another dog worked. Funny enough, when Loki was a puppy, on more than one occasion I commented that we should have gotten a B puppy after already having a dog to help keep him entertained!
We take ours for lots of short rides in the crate to local parks and then take them for nice fun play walks to wear them out, they soon associated the crate with going some place fun and did not hesitate to run in their crates.
It's really hard to tire Ava out. She has an endless supply of energy. That's why I had hoped for doggie daycare or daycamp, but she does not yet have enough manners or bite inhibition to be accepted. We are working on that, but it doesn't much bother her if she hurts someone– human or furry-- with her little razor teeth. But that is getting better now that she has lost so many of her baby teeth. She has eight big girl teeth in front and is no longer gnawing like a termite on everything in sight!
We are going to try the dolphin on a "leash" tomorrow.
just wanted to know how the dophin on a leash did. Update?
The pink dolphin went out for a spin and it worked pretty well. The Princess didn't want to give it up, though, and wasn't as accommodating as Zest about being reeled in with her prize. But she gave it up for a yummy treat, and we got in a few good retrieves before she was distracted by blowing leaves… and the garbage truck... and the barking dogs next door... I try to keep her training sessions brief, because her attention span is so short. We'll keep working with Dolphin every day.
Did I mention that Ava barks? Yep. Only once or twice at a time, but definitely a bark.
Z was not real keen on giving up blue bird at first, but she soon realized that she got a treat and became more accomodating.
C-Me barks too…
