I'm not getting into a battle about who's tune is better. I am not condemning Penner. I was asked about a particular tune, I could see it was still speed restricted and there were differences to my tune on the particular bike I had on the dyno. A simple reflash for any and all Rockets I would suggest is a compromise, but possibly one that your bum dyno wouldn't feel. The main restriction is the throttle angle. On different models there are differences in tunes, we all know that. I have seen very few Rockets on my dyno but the ones I have, I have made significant gains in power. But there is no way I am going to sell just a tune and guarantee a set power gain. I would always prefer the bike to be on my dyno to build maps for it. My hat's off to Penner for giving everyone a nice power gain. I wish him the best.