It would be great to have a plastic overlay for the the 57SL's B1 through B6 buttons... showing the insert points of PGM1, PGM2, AUX, MAIN, cue, on.

This would be especially helpful for those using the mixer, and its fx, but playing analog sources through the FX rather than having SSL hooked up.

It would also be helpful to have the other things labeled (Joystick timing and fx mix +/-, tap, etc.) Possibly with two seperate colors for labelling the encoders, one for Echo, one for Filter.
But even if its only an overlay for simply the insert points, i would buy it.