1. idk what you're 3betting here besides callable hands and bluffs, but I guess you're 3betting hands like AQ/22-66 and wondering if you should be calling it of with those? TT+/AK are snap calls, I'd call it off with AQs as well. AQo/KQs/AJs are close while the small pairs look like folds.

2. I'd bet flop and barrel a lot of turns, your perceived range should be super strong in this situation and if I'm thinking correctly, a 25nl TAG isn't really protecting his PF+flop calling range well enough to have a strong enough hand to call you down (unless he has 88).