[tigerite]

Problem with raising is it lets him come back over the top, or call and have position on you on the flop, and so on and so forth, just gonna be a mess. Though I do sometimes raise here, I am pretty sure you could push and throw your cards face up here and there's no range he could call with to make it -$EV. That is not the case with 22, I wouldn't push 22 here, I would probably not with pairs lower than 55.

As for what size stack for just raising - something like 14BB. I might very, very rarely complete but it would require a read that he won't push over it or be awkward or something.