I have 3 friends using C1. Two of them extended the butt for easy loading...

. Both with 9/32 threaded. One with medium Riffe tip and 2 x 9/16 bands + extra 1/2 bands. The other one with 1/2" x 2 bands, with his own stupid tip that made me loose a nice trevaly.
The last one belong to a lady friend that just recently lost it in the water....poor soul. Using 9/32 hawaiian shaft and 2 x 1/2" bands.