I personally don't find Pyrodex much (or maybe any)cleaner than GOEX. I do know I'd rather clean up a gun that's been shooting GOEX over one that's been shooting Pyrodex.

I've had sucha hard time getting GOEX that I haven't shot it much in the Mustang. I'm in the process of getting a bulk supply and plan to conduct some GOEX/Pyrodex/T7 side-by-side experiments with a couple of different bullets just for grins. GOEX shoots REALs out of my New Englander better than Pyrodex, although at lower velocities.

Lyman doesn't tell you about it in the manual, but there's a trigger adjustment screw on the Mustang. You have to take the stock off to get to it. When you do, there's a red dot on the right side of the frame that is actually a dab of sealer over a very small set screw. Pick out the sealer with a needle. Use a very small Allen wrench (#40 in my Chapman tool set) to turn the set screw in (clockwise) about a half turn at a time. Cock the hammer each time, put the safety ON, an pull the trigger. If the safety still functions properly, take it off safety and pull the trigger to see how it feels. Keep doing that until you get to a point where it FIRES with the safety ON - then back the screw out one full turn and try it a half dozen times to verify the safety is working properly.

I made this adjustment in addition to polishing the trigger-to-hammer contact surfaces. But that's a little more of a ticklish job. You have to be careful of two springs when taking it apart and putting it back together, and it's a bi+ch to get the firing pin* and spring back in place.

*CORRECTION: It's not actually the firing pin, but the hammer spring. It's a spring loaded shaft that goes from a socket in the rear of the frame to a socket in the back of the hammer.