A necro bump, but I was I was going to make my own thread if not for this. I love the dirty shirley, and its what keeps me coming back to my FM3 over plugins/other modelers/etc. I use a revv tilt or another boost/od into my FM3, dirty shirley patch, and for the cab I use the vintage marshall with the mix of greenbacks/v30 since its close to what a friedman cab would be. Its so dynamic, in a way that's especially impressive for digital gear, I can roll my volume off to a clean tone even with my OD engaged, but then roll it up for a fat honky gain thats really pleasant to me.
I've always lusted after Friedmans, but mostly ignored the lower gain offerings, but because of owning an FM3 I think my first real Friedman will be of the shirley lineage. Just a thanks to fractal folks for this especially beautiful model.