Oww, ergronomics.... Answered
Recently, I've noticed my arm is aching every time I use the knexsayer. At first it was after about 16 pumps, but now it aches after 1 pump. The pump is not hard to pull back at all with 4 #64 bands, but for some reason the arm that pulls this pump back is starting to ache. The gun works perfectly and there are no problems that have to do with the gun.
This has never happened before, and I wonder what is going on. Any help?