Ideal 3betting size.

[Mike Kelley]

Would love some input on this aspect of my game...

What is the ideal preflop 3bet size? When I 3bet (4x villains bet is my default). But I have been thinking about adjusting it.

Would it be bad to 3bet based on villains stack size?

I know that I want to punish villains for drawing at my aces, but I also don't want to scare them off pre-flop every time either, as postflop play gives them more chances to make mistakes. Also I am trying to find spots to 3 bet light.