Hi,thanks to all for your advice.Swamp,the issue is not the pitch/speed,it is that it disrupts the floating motion of the suspension as it pulls the platter closer to the motor.On a fixed suspension table this would probably not be an issue.I would like to know where Sota sources their belts from as I have four tables that use this size belt and can't bring myself to pay the $25.for each belt.Call me cheap,but if someone knows where I can buy these at a reasonable price I will buy a dozen!