Don't be mislead by the 6 gears selling feature. It is very hard to time it properly to go from 1L to 1H to 2L to 2H, ect..... the GV is an electronic solenoid with a delay from the time you push the button until it shifts. You need to time this to take place just before shifting from 1 - 2. The best part of the OD is the 22% reduced RPM when cruising.