I see Sparks offers an advance key 6 deg for the Raptor. Has anyone tried this?

 

They are re-doing it right now. They say they won't be available for a while, untill at least curtis has time to work on them. I've called em 2 times over the past month and a half and I get that answer each time.

A couple of my buddies have them in there quads. The one with the 2001 felt stronger, but the one they put in the 02, you couldn't tell a difference.