hpi savage low center of gravity chassis

does anyone know about using hpi savage low center of gravity chassis .i own an hpi savage limited edition and wanted to purchase one of these L.C.of G. chassisies but then i was reading somewhere that the roto start system wasent compatible with it .does anybody know if this is true or any other problems i might run into.also if that is true how does savage x get away with roto start system do you know if i could buy a savage x chassis and put all of my stuff off my limited edition on it without very much modification .please help tired of roll overs beating up and breaking my bodies
t.y.
badoff:007: :002: