#1. correct play, although id rather check on a relatively safe rainbow flop w/ my set rather than lead into it. if your read is correct & he's holding an op, you can rep aj w/ a check-raise & make him think he's extracting value out of you, not viceversa...

#2. 100% correct play. you're statistically ahead of virtually anything except flopped trips--nut flush draw, two overcards & a gutshot as well.

#3. 100% correct play. it's next to impossible to put somebody on a ten here, (unless somebody called your 12xbb re-raise w/ tt & hit quads, in which case you tip your hat & pay the man like a slot machine.) i'd actually have him on aj, since plenty of idiots make extremely marginal calls w/ it hoping to hit their 3-outer on the flop.