A few questions/problems! Ok, here I go: 1) with some of the slippier strings, the string slips right through the string gripper, and I can never get a stable tension. What should I do? 2) When I tension a string and clamp it, then I untension it, the clamp recedes a little bit. Is that ok? 3)the tension was off by 5 pounds when pulled at 50, so i followed the instructions, took off the string gripper, took off the cover on the electronic tensioner, put the string gripper back on. I pull at 50 again, and it's dead on precise, which is weird, because according to the instruction booklet i was supposed to fool around with some screws to get the right tension. Anyways, I put the cover back on, put the gripper back on again, pull at 50 and for some reason it's off by 5 pounds AGAIN!! Any answers would be great!