just wondering if i can run the helix and wieght set-up from 6-9000 ft at 0-3000 ft??? i think it will just cause it to over rev, but am wondering if i can do any damage by running the set-up. i just got back from out west and some buddies wanna ride this week and i wont have time to change it back. also can i cahnge it back myself and not take it to the dealership? do i need a special tool to remove the helix? any info would be great.