My dealer thinks he finally fixed my sled. The RAVE Valve solenoids were both not working. My PTO side was not working at all, and my mag side was working intermittently. If you've been fighting with your 07 800R not pulling, have your dealer test the solenoids. They had to cycle them quite a bit before they would act up. I have not yet rode the mountains or powder yet, but it feels better around here on the pulls I made. Ill report back after this weekend.