Im tipping that the big difference between the custom x and hotknife is the magne traction and the camber profiles, they would have more of an impact on board speed than anything else.
Ive only ridding a gnu riders choice once, but I have a TRS on the way(should be here in a week!!), but riding the gnu, i may agree with you.
the banana tech + magna trx gave me a mega quick responsive feel. But to really barrel down the straights, i had a feeling it was going to take some time to dial in pressure just right to get it to fly.
I hear the sintered base on the TRS is quite fast. I got a 155, and Im coming from a burton supermodel 159. I anticipate some serious speed drop at first, but with some days together Im sure we'll be rippin down right.