could the fast ball fall off the metal rails from time to time ? whereas additional plastic on the sides of the plastic ramps hugs the ball more like a water slide, which gives the speed . extra 2k for metal ramps , metal apron , proper bracket and led changing general illumination ..mmm still sounds like the pro with the extra brackets put in and shaker motor and metal apron added down the line would be the way to go. Also one less board on the back to go wrong like the xmen boards that kept blowing.