ok, so like a good grip junkie you went out and bought a gripper or two or three, but you're stalled. You've been grinding the gripper handles down to extend range of motion, chopping off the handles to decrease leverage (not something I think I reccomend any more since it effectively reduces the range of motion by chopping off the outtermost part of the sweep and therby reduces specificity to closing heavier grippers), and have been looking for other ways to enhance your gripper's difficulty without buyting other costly grippers... FEAR NOT SHERDOGGERS! Frome the bowls of another board I bring you: The hose clamp! http://www.grippermania.com/uploads/1120647103/gallery_110_27_95490.jpg Seriously. As soon as I saw this I ran out to my garrage gripper in hand to try it out. I wrenched down a hose clamp on the spring on my number two and was then 1/4" off from closing it (previously my number 2 was at least a 5-6 rm for me right handed). By not allowing the spring to expand laterally, a single pipe clamp can add a SIGNIFICANT amount of difficulty to any gripper. Those of you who only bought one gripper (the number one most likely) here's a way to add more resistance! Best of all, it costs less than a buck. BRILLIANT!!!