Chris,


They don't!

Their engine is a .45 and yes, it will blow away the OS, the TT, even the Rossi and most other engines; even with its normal muffler.
It may only capitulate to the Jett .46 and even then, not decisively.

It does have the big advantage of having its integral pump-regulator, making the tank location unimportant.


It is no longer offered by YS, but they are frequently offered NIB on that auction site, as well as in the RCU marketplace.