RE: What do you think is my limit?
Acctually, you are built to take recoil very well. You will move more easily, rather than soak up the force of the recoil. Tall, skinny folks tend to handle more recoil with less pain. Someone who is 5'10 250# will take a real beating compared to the same height person in a 135# frame.
Really depends on you. What sort of experience do you have with firearms?