CS-2 versus CS-1

Trying to decide between a CS-1 Lenco and a CS-2 Lenco, three speed, in an Outlaw door car. Does anyone have thoughts about whether a big shaft CS-2 is strong enough as compared to a CS-1? What about rotating inertia, one versus the other? All things equal, it sounds like the CS-2 saves about 20 pounds over the CS-1. Application will be air shifted. Power will top out around that of a TAFC, but without the big hit at the bottom.

 

We have used CS2 for years with absolutely no problems in P/M.

 

Thanks. Do you use the "Big" sprags or the "Helicopter" sprags?