Clutch belt info, I forget...

[mooreperformance]

Spring Loaded Roller Clutch
Scorpion Power Thrust I

I believe the center-to-center distance on all Scorpion clutches is 10-1/2 inches with a 3/8 offset (except Brut).
Is that correct?
Does anybody know the exact belt length?
Does anybody know about the different clutch weights and spring tensions on the Power Thrust clutch (not Power Thrust II).
Are the stronger (high-engagement) roller springs available from any source?
All comments and information would be appreciated.
Thanks

[obj1]

yOUR RIGHT ON THE C TO C AND OFFSET. BELT LENGTH IS AROUND 43" AND THAT WILL CHANGE WITH DIFFERENT BRAND BELTS. WE HAVENT FOUND ANY SPRING OPTIONS THAT WERE SURE OF. WE HAVE A LOT OF SPRINGS BUT THERE NOT MARKED SO WE DONT KNOW WHAT WE HAVE.

[mooreperformance]

Thanks,
It would be great if we could get a spring manufacturer to make stiffer roller springs for the drive clutch and a stiffer spring for the secondary clutch.
Anybody have any suggestions? Anybody willing to buy them if I have them made?