Yes, cutting is necessary per Adam. We were not aware that the 5/8" coated clamp was needed till Lonny started the build video on this section. The clamp would be needed for any early model if you are planning on running cruise control, if not, it won't be needed.Is cutting the early model switch and arm necessary for hood clearance? My K22D baggy didn't come with a 5/8" coated clamp, so I'm not sure if it's necessary on mine or not.