1-oz
I love the JS stock conversion. Being a 4-gun skeeter, I shoot a lot more .410-bore and 28-ga than 12-ga. After getting acclimated to the little guns, switching back to the 12-ga can be a rude awakening. The air-cushion stock reduces the difference between the big a little guns. I can apply more air pressure as I installer the smaller tubes. I have the same G-Squared air unit in my prime trap gun.
My friend, as you know, a standard Perazzi stock, although structurally good wood, may be a Plain Jane. The Mirage was one of those -- nice wood, but far from breathtaking. JS matched the wood fairly closely then he did his magic: Joe used various stains to artfully apply gain highlights across the new and old wood to make it look like one piece of higher grade wood. My other P-guns have upgraded custom wood and I wouldn't consider sacrificing them to a JS conversion on them.