Almost did, but there were too many variables that made it almost too much for me to deal with. It sounds great as its own amp, just mic it and go! The mac and JBL's aren't needed really, I tried that out because I had them already and it was interesting to try something new. It can work, but I wouldn't go buy them for that application... I ditched that effort when I realized it was the same amount of gear using the Gdec than using a real Jerry rig anyway. The louder volume application didn't turn out as well as hoped either. It wasn't a complete failure, ditching the GDEC was me just wanting something that sounded the best LOUD not LOW with little "dial in" effort. Plus, I wound up dialing in that tone at bedroom level not stage volume, so I lived and learned that db has an effect on overall tone.
Part of going digital though is to carry a simple setup. I still use mine every week at the local open Jam. Try using the amp alone and dial it in through the PA and have a monitor feed too so you can really hear the final product. I dunno if I like the tone better mic'd or direct either. Choose through the Timber section like you would be choosing a cab simulator if you are going direct.