I am new to stringing. When I pull tension clamp the floating clamp right next to frame/mounts with my gamma x-2, then release tension the string lose tension. The clamp is super tight but their ends up being an 1/8 of an inch of room between the clamp and the frame/mounts. What am i doing wrong? As a result the strings are easily moveable with my fingers and a really poor string job compared to the local professional racquet stringer. Please help.