If you like to swap different string gauges or are searching which brand/type/gauge set you like the most, you will definitely LOVE the sure claw made by Schaller! Why? because there is nothing worse than to screw both screws a quarter of an eighth millimeter to the left to adjust the spring tension of a floating Floyd Rose system while leveling the bridge with the body. In comes this nifty item, with the turn of one allen wrench (hex key) you can adjust it very precise to get the desired tension on all springs at once ànd keep the sustain block level. Some back covers (the ones with open slots) will even let you adjust it without unscrewing the backplate! The claw also adds a little more sustain. The only downside is that there is no spot to properly solder/screw the ground wire, but this can be done by bending the wire around the screw when you install the claw (if your wire is long enough).
Pro : Much more easy to adjust spring tension, adds little more sustain, rock solid installation.
Con : too bad there isn't a proper way to fasten the ground wire