I have run my XP pretty hard I have not had any gears strip yet neither my dads. Just problems with things not being tight.(grup screws not being tight and such oh yeah and the spring breaking in the clutch thats about it. I replaced thing spring with the traxxas 4146x and it is working great. I have went through about 2 gallons know. I now have it shifting every time and this things screams when it hits second gear. I like mine. I have just been buying parts to mostly stock up on things because I know my time is coming.