yea i have tried plastic but when i got to drive it it does fine for like a min or so then goes crazzy and out of controll and i realy dnt know anyone thats into the sport but i will take it to my local rc shop and see what they say i might just put it back on ebay and get a traxxas witch seems to be the most popular brand in my area ...i dnt knw if upgrading my system to a 2.4 fm system will help or if its the servos them selves im just at a total lost with this thing