[Formulajones]

Originally Posted by tom s

They are so EZ to spot as the body does not extend pass the roller bearing shaft.Look like pretty much like everyones solid roller.Comp has not used the S for years now I think.Did that when they came out.Tom

I just bought a set of "S" Comps, couldn't have been more than a year or year and a half or so.

Either way, Steve C sent me this from Butler that has a nice explanation with pics.

https://butlerperformance.com/n-1349...formation.html