AK on J96 board I would c bet, any raise I fold, call, c bet the turn, a raise I fold, a call I slow down, unless I connect, AK is a drawing hand, dont give it more value than it actually has which is nothing on that board.

as far as 99-JJ, good flipping hands but know when to pick your spots, know when someone has a better, know when to fold if an over card is on board. You are looking for a set or top pair.

Just my $.02 might be better ways to play those hands.

EDIT//

10 BBs or less, auto shove pre flop with these hands