The floating hand was something S&W came up with in an effort to keep timing of the carry up from wearing as much. It was not particularly successful and was discarded very quickly. It can be changed out to normal by any factory trained armorer by removing the hand and punching out the floating connection on the trigger and just installing a normal hand in the trigger and checking the carry up. It's super easy to do if one has the standard hands in a variety of sizes to fit. When it's working you probably won't even notice the floating hand but if you are betting your life on the gun, as in a carry piece, I would have it changed out at the first opportunity. The standard hand is more reliable.