I thought I read where Hondaman doesn't use the Cruzin clips when he uses those pistons. Maybe he will chime in or correct me.
You're right: I don't use those. They have come out at 10,000 RPM on me before.
The Honda version ("C" shaped) is the more reliable one, IMHO.
If you need some, PM me your address, I have a bunch of 'em.