Sounds like something is wrong. Mine doesn't start to spin until moderate downward pressure is applied. Works fine under it's own weight (most of the time it is used this way on my cars). You can get a better feel for it using the 'pad cleaning' technique. Mequiars says to remove the old dried product from their pads by running the PC at normal speed aimed away from you, and running your finger tips over the padd (Eye protection, no loose sleeves). Light finger tip pressure doesn't interfere with the motion on mine, moderate seems to slow the pad. Maybe call the factory? 1-800-4US TOOL (487-8665)

Good luck

__________________
John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

Click to see 87 300E