First, she is adorable. Beautiful, even! The curly tail, to me, looks straight off of a shiba inu -- similar in size, also
a an ancient breed with curly tails, but are much bushier compared to the tightly rolled tail and short hair coat of basenjis. The traits you mentioned seem more like a shiba to me, too, with the pouncing esp., but there are many more experienced breeders/owners on here that may have a different take. Regardless, it's pretty obvious Parker is a really amazing, special dog. Thanks for sharing her! primitive
I wouldn't bother with the extreme. Our two Bs still use both the puppy kongs and classic Kongs without any problems (although they do chew up/destroy other things). We also have both medium and large and find they both work well, depending on how much food/how many treats we want to give them.