The CRF has more top end power and revs much higher than both the LL & LS but felt unresponsive at the bottom with a delayed feeling @ the top.
The CRF start out with a slow spool up that increases exponentially as the revs climb. The Nova's have a linear feel with the LL dropping just a bit in the middle compared to the LS. For me the consistent spool up speed made the LL & LS feel more responsive, consistent, & easier to drive.
People who throttle like a switch will have trouble with the Nova's instant high power response but those with better control will love the motor's precise feel through the powerband.
Mark