So we have these soft flats that are 10' high and we attached a piece of 3/4"ply wood 2' long behind them on their width (that varies) and on the bottom we put 2 rotating casters (up against the flat) and 2 nonrotating casters (in the back of the 2' platform base thing). My cast and crew is complaining. They don't move very well and they're very loud. We made it so that the casters lift the flats above the ground just enough to move it easily so that it actually rolls. It also has a 5' hypotenuse aframe jack thing in the back to hold it level and at 90degrees. Any suggestions to make it quieter/easier?