For the high-gain sound I use, the EVH 5150 III red channel model is incredible. I mostly used FAS Modern, FAS 6160, and occasionally the red channel rectifier, but with less tweaking and without boosts or EQs, the latest 5150 additions blown them away. It's the best addition the Axe FX II has had since I've owned it, at least for my play style and sound. I have been wanting a 5150 III lately, and the model has actually made me want the amplifier even more, funny enough.