I apologize for this general question.....

My father is going to be shooting a 2004 Mathews LX this fall. He has been told that he needs to change the bottom cam to fit his draw length.

Does this mean he will also have to purchase a new string?

He is probably just over any adjustablity for draw length in that first cam.

What his exact measurements are...I am sorry, I don't know. I am more looking for a hard rule that says once you change cams...you have to change strings.

Any help would be greatly appreciated.