I'm interested in the Helix camshafts as well, but buying something that is so new on the market makes me very nervous. The first people that used DPR and Crower camshafts had quite a few problems them. It took DPR and Crower a while to work out the "bugs." I would hate to get stuck having problems with the Helix cams after spending a lot of time and money putting them in. At this point I think I'm going to save up and go with the DPRs. They're proven to make power and be reliable.