3betting is fine against them, do it enough and they won't be opening so wide on the BTN against you.

Don't like the turn bet, they fold all worse hands and call only with better ( I expect every ax hand to call us here).

3bet polorized. Dont want to 3bet this hand when we are 30bb deep since we dont want to 3bet/call. if we are around 20bb this would get in to my 3bet/call range.

3bet/call 55+AJo+ATs+

3bet/fold K5o,K7o,Q8,(hands thats barely out of our calling range but have good blockers against shove) etc hands like that. Around 3-5% range depending on how much they fold to 3bet.

+1 for 3 bet bluffing combos which don't make profitable calls but have blockers.

As played if the board didn't pair I wouldn't mind the turn bet but I'm doing it with the intention of betting the river to get him off Ax, but once we have a double paired board it's tough to get shorties off Ax

I'm with @Prostaker on this one. Remember that you can also experiment with lower 3bet sizing especially against weaker short stackers.