Quite a small sample since they don't come up too often but I feel like I'm getting owned in overbet spots. Both when I am doing it and villain is doing it.

I won't put my thoughts on each hand instead just see what you guys think.

As you can probably tell I don't actually have specific overbet ranges in these spots, have just been experimenting when it felt like a reasonable spot. 

http://weaktight.com/6321527 - only 60 hands but seems active 7.0AF 11% 3bet but all 3b's been from the blinds

http://weaktight.com/6321545 - villain 25/21 7.4%3B 30% FtCbetFlop 0% FtCbet turn over  400 hands

http://weaktight.com/6321556 - 23/17/ 12% 3b (8.9% from BB, BB fold to steal 67%)

http://weaktight.com/6321566 - 21/18/7%3B 1.6AF but only 400hands.. know he plays 200NL also