hand 1:

-yah I don't mind this play once in a while. I think if I was raising to isolate, I'd raise more PF given that I was OOP. As played is fine

hand 2:

-I'd prob need reads on this, that he cbets too much etc, but with reads this is good

hand 3:

-I don't really like it too much. I think it looks kinda airy, since you'd prob raise most of your entire range of strong hands on this board on the flop. I'd just raise flop if I wanted to put in a raise.

hand 4:

-yah I play it the same pretty often