The RX1 was got long legs and will show them better once they have a couple thousand miles on them. Like any other sled though they won't cut it if you don't keep them in shape. Taking care of the undercarriage to keep rolling resistance down makes a big difference. Bearings, slides, track tension, suspension setup, etc can make a big difference, even with two otherwise identical sleds.
I've got an 03 and don't usually have much trouble with an SRX on the top (if it's stock).
opsled