Racer's Edge packs, which cost a whole bunch more than my Zippys. Our trucks are both comparable to each other, almost transparent really. My intent on posting here isn't to get into a pee-pee match about packs though.

Considering I have my ESC turned down to 30% punch control and my throttle curve is cut way down, the performance I get out of my Zippys is still incredible, and the truck is still bordering on out of control at full throttle. If I were to put the ESC back to default, the truck would be a mess.

The good thing about the Flux is that it doesn't discriminate in the least.....it'll flip and do all kinds of circus tricks regardless of what brand packs you are running. lol