Mine Invisible stand is currently set up in my studio and is holding up my NS3C and my NumaX 73. I use pieces of that non-slip matting to stop keyboards from sliding around, it works great! I gigged it for years but these days I use a K&M 18880 with second tier for gigs, I have mounted a mic boom on it too. Mojo 61 on the bottom, whatever needed on top.
The flat top and front mounted controls on the Mojo 61 mean I can slide it under the top keyboard and get the keybeds close.