My '03 Fantom .12 is now broken in and I've run a few tanks after break in. I've tunned it and keep messing it it to make it fast but it never performs near as well as my other Truck (identical, but heavier) with the stock Mach .15 motor. Is the Mach .15 really that good, or is my Fantom really that bad? Any ideas whether or not Fantom will help me out on this? I bought it 4/17 so there is warranty.