I had an interesting adventure creating these presets... At first I tried to make them by ear just fiddling with different amps/cabs and EQ settings. It was taking forever and I wasn't getting anything better than average results. Then it dawned on me, why not just try and pick amps/cabs/stomps that model the actual amps/cabs/stomps they used in the original recordings. It worked really well for some of them, but didn't quite get me all the way there. Lastly, I used iZotope EQ to match the EQs. Rather than relying on that post-production trick I then tweaked the pEQ on the RP1000 to match the EQ curve iZotope created for the match. Thus, the presets don't rely on anything other than the RP1000. Most of them turned out pretty well (I think). Some of them, not so much. There's a lot of "roominess" in Metallica's guitar sound which was hard to re-create, but I did my best with some chorus and reverb. All that downpicking is pretty exhausting too... http://www.youtube.com/watch?v=ZjEaTbirUKg Let me know what y'all think! I'd love some feedback... PS - Details about signal chain and some other stuff are in the video's description on YouTube.