I got the 7" doinker and love it
I was looking for the new A Bomb when I purchased mine but couldent find it anywhere.Give one a go,best there is out there,but thats just my opinion.
Your goina get alot of different opinions,but the ones you mentioned can be purchased right over the counter.
Do you have any friends that have any you mentioned you can try on your bow,for comparisons sake?