First post, new mt335HC.....first off.....this thing is fantastic. Second, just went into regen at 12.2 hrs...give or take, thats when i saw it at least and started my stopwatch, and she stopped at 9 minutes. It definitely started earlier but thats when i noticed it. I kept the rpm's at 2400. Since I took ownership, I've tried to keep rpm's up(over 1500 but usually over 2000) until I stopped, then I'd let her idle and let the temp smooth out. Always let her idle around 1000 on start up for a few min and let her idle down around 1000 before shutting off...as recommended. I know this is pretty much a rebadged xr3135...at least that's what I've gathered. Is this normal or is there no normal regarding these things? I need to make another post with a review of this thing but I wanted to throw some hrs on her beforehand...until this random early regen. Also, I was running her pretty hard digging a slope and backstop for a shooting range...also, another thread but I was working her 10 times harder than the first 11 hours. Should I be worried or just let her eat?!?!