Problem solved.
After several emails, w/ and w/o pictures and a call with Jeromy @ Rifle Dynamics, I took a nylon bore brush, dipped in a good carbon solvent (I like 50/50 mix of Kroil/Shooters Choice) and ran the brush down into the gas port with the adjustable set screw removed. THEN, I was able to run the set screw beyond flush, all the way until it totally cut off all gas. I was able to adjust the gas so both suppressed and unsuppressed ejected and the brass is not totally destroyed. Now, to figure out much to open up the screw so it will run that Brown Bear 196 Subsonic ammo I have......Boy is it quiet!