So I let a buddy drive today as I was riding bitch and at about 30mph the trans jumped out of high gear. At first I thought we had blown a belt due to the rpm jump and all the noise that sounded like a belt coming apart. The shifter was fully seated in the high position detent so I don't think it was anything he did that I could tell. We had just been running ravines and there was a lot of shifting on hills (when the machine is hard to shift because of load on the driveline) do you think the shift cable stretched? I drove afterward and never had a problem? Anyone else experience this?