We have an 08 Ultra classic. We have upgraded the exhaust to true duals, big sucker air cleaner, and added the Power Commander 3 to the bike. Last August we paid to have it dynoed and it ran great. Recently we went on a long haul and noticed that we lost power as we were climbing in speed. There seemed to be a dead spot in the throttle. We could back off the throttle and gain small amounts of speed. But for the most part, we were losing the pack quickly. We noticed this a bit before we had left, and just blamed it on bad gas. But after serveral tanks of new gas this trip, it is apparent that it was not the gas. We got home we we took the cover off the power commander and let the bike idle and it seemed fine, then we went full throttle and you could see and hear the dead spot in it. Could the power commander be bad? What should we check first?