Older Visions had a flaw with the strap that holds the pot's output shaft to the radio. This strap often cracked causing the shaft to rotate and cause the problem you are experiencing. The fix is quite simple; just reinforce the strap and tighten it all back down after you re-center the pot using the Vision's LCD readout. We found all this out on practice day for the '91 F3B Worlds in Holland when Larry Jolly's radio had this happen and Joe's was about to. We fixed both in the field and the rest is history. Good luck, Norm [EMAIL PROTECTED] writes: << If you notice that the elevator stops counting at partial down, then you probably need to readjust the pot centering manually. >> RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]