C
My sled spun about 7380-7450 rpm with stock 85 gram weights.I put a set of 87.5 dalton weights in to bring it around 7200.With the heavier weights I am now getting very erratic rpm.You nail it goes to 7550 sometimes I seen 7700 for a second then usally goes back down to 7350-7400 then when its accelerating to about 90mph thats when it drops off to about 7200 rpm.Is it belt slip on the secondary.Rpm was pretty normal with the stock weights just wanted to bring the rpm down a bit.
