RE: HPI SAVAGE VS DURATRAX WARHEAD EVO VS TRAXXAS REVO & TMAX?
your problem is all in the tuning of the truck. Check your throttle trim. If you throttle trim is turned low this automatically will engage the break when you let off the gas. I have the warhead evo and I am still fine tuning it. My brotherinlaw has the savage x and my warhead is able to everything his truck does but more. Take your time breaking it in and fine tuning it.