I have progressive 412's lowered 1 inch with Bub pipes and rarely scrape them.

I weigh in around 210lbs and bottom out occasionally riding solo, and bottom out LOTS when riding 2-up.

Cheers!
Ceuls

'07 SM - Ellipse Mirrors, Progressive 412's, Freak, Bub Exhaust, AI Removed, Summer Screen, Low-Pro Saddle Happy Trails!