Your buggy is probably alittle lighter than the 1 I will be running, I already planned on the 6.5mm restrictor from the start. I will start where I said and thn maybe try a mix like 2 alum and 1 carbon w/1.0 springs. I tried mixing before on truggy and had no luck with it. I will mostly be on med size tracks hard packed with some dust on the edges. I really dont want to go with alum if I dont have to. Whats the difference between teflon and carbon shoes? My chassis sponsor has both available and 2 styles of 7075 alum shoes but like I said I am going to try to not have to use the alum shoes unless I have to.