Has anyone recently made the switch from a CRF450 to the YZ450F? Are you completely happy with your decision? What about the CRF do you miss (if anything)? After buying red for the last 3 bike upgrades, I'm wondering whether I should try something new. I've read that the YZ450 "feels" lighter than all the others, but that's just the magazine talking ~ I'd like to hear this from a real person. Do tell.