Until I saw Hayne's Mi3 I never really realized just how adjustable the schui is, you can really make the car have the geometry of just about any car on the market, and evey angle is adjustable by however thin a shim you would want. I am pretty sure within the first 2 weeks he had the car he had matched his pace from his type-r, both on foam and rubber, it certainly peaked some interest. The Mi-4 looks cool, it looks like a few things have been simplified like the arm mounts, I'm going to guess the mi3 parts will still fit if you wanted? If we end up getting another local track I'll be putting together one.