I attach it tightly enough so that it doesn't pivot on the hoop during playing. This can involve cranking it down a little, and yes, your hoop suffers. On the other hand, I have never seen a used set without scuffs on the hoop from the pedal. I'd say it's normal wear and tear. You can cut a piece of thin rubber and put under the clamp to help alleviate some of that, but I don't.