Sorry to hear about your bad luck, but the good news is that great help is available. My 2014 R3R began dropping from 4th to 3rd by itself shortly after I had the engine Carpenterized. Since I purchased the base 210HP kit, they didn't need to split the cases. My trans was in good working order, so I didn't go the extra mile to split the cases. But, after putting only about 300 miles on the Carpenter engine, I had to pull the engine to fix the trans. I shipped it to Carpenter and they tore it down, sent the trans to Robinson, then Carpenter reassembled it and shipped it back. Robinson upgraded the circlips, backcut gears, and installed their billet 4th gear. No one ever said what was wrong with it, but I suspect a circlip. Everything went like clockwork, not necessarily quick, but quality work can't be rushed. Just did a great ride this morning on mine with a gent and his new Rocket GT. As far as more power, different strokes for different folks. I haven't raced against a new Rocket, but I'm pretty sure I can outrun one with my 230HP and 170 ftlbs of torque at the rear wheel even though my bike is heavier. The other Carpenter kits offer a little more power but cost much more than the base kit because of the new pistons. The problem with chasing horsepower is that sometimes you lose torque which is one of the reasons I own a Rocket. I like the balance of the 210 kit for everyday riding and passing power. But too much torque can be a bad thing if the drive train can't handle it. Superchargers and turbos tend to greatly boost horsepower and torque. In 2010, Triumph increased the R3R torque by 15%. They also beefed up the drive train to handle that increase. What if you add 50% torque? Will things start breaking? Maybe someone has a Rocket that has long term success with that kind of increase. I'm confident that my Robinson enhanced trans will handle my Carpenter engine for the long haul. Good luck!