Gary, my post was about the OP’s rig. Those slide out shelves aren’t all that rigidly locked. Maybe it’s because I am from a pianist background (although I played a lot of organ too) but I need a keyboard that doesn’t move a millimeter no matter how hard I play. Pianos don’t bounce! 🎹😂

Perhaps it seems unimportant, but consider how a keyboard recognizes velocity… it is the speed that the key moves at when you hit it. All fine and dandy until you start to have the keyboard itself moving. Now the speed that you strike the key gets either added to or subtracted from the speed that the keyboard is bouncing at. This leads to a slight degradation in how accurately it is detecting YOUR force.

This is why I always have my keyboards on the most stable stand I can use. In the case of live performances, a ‘leg at each corner’ type keyboard stand, in the studio, on top of the desk, not suspended underneath it on some flimsy sliding shelf!

When I play a keyboard, the ONLY thing I want to move is the keys! 🎹