Great site, thanks for the link.
The shortening was quite an adventure.
I have access to machine tools at work. I hadn't used a lathe in 20 years, but what the hey. I cut the barrel to about 9-1/4" in a cut off saw, faced the muzzle on the lathe using a 90 degree recessed crown in case my centering was slightly off.
The nerves were tested while drilling the new front sight holes. I didn't have any sophisticated way of knowing how deep I was drilling, I just drilled until it 'looked right'.
I borrowed a extra fine tap from my local FFL (#6 x 48 IIRC) and went to it. Those small, fine threaded taps are really touchy.
When I got done I remounted my front sight with plenty of Loc Tite, put my Trijicon Reflex sight on and headed to the range with some of the Trail Boss hand loads. Did some plinking to get sighted in, and then put it on the bench.
Three rounds went into a tidy 1-1/2" group at 50 yards, just like they did when it was 12" long.
Off came the scope and mount and I went back to open sights.
I'm very pleased with the results, but I would never do it myself again. It's not easy to press that 'start' button on the cut off saw with your favorite pistol barrel in there.
I really like the 9" length for revolver rounds, balance is better for me, and my offhand shooting is pretty darn good with the Encore.
I added a custom 9" .357 Magnum barrel from MGM and like that as well.
Now if Pachmayr will send me a new grip, I'll be in single shot heaven.