Ok here's a spot where I'm not exactly sure what's most +EV...

You are in SB. Villain is in MP (HJ in 6max I guess) and is not a maniac or a 3/3 nit. Villain raises to like 4bb's and you hold 66 and call and it's HU to the flop. You both have 100bb stacks. Assume villain cbets the majority of the time. The flop is 237 rainbow. What is your standard line here? Does this change if your hand is 88 instead of 66? I'm not sure what is best as villain will have missed a lot of the time. I guess tailor your advice to suit 25nl.