mebbe cap pre-flop with AKs against the thinker, but not AKo
eh yeah, checkraise that flop. although if it misses the thinker, he may check behind.
his stop & go is crazy. showdown time..let's see your AA
the check/call is good if he's been bluffing. You may just fold him if you bet out. You need to see his cards, as you said he hasn't shown down yet.

I dunno..