I just picked up a GSR (Thanks, Mojoman!), and I was comparing it to my Zendrive; I found that chords sounded a little more articulate with the GSR, but I like the Zen for leads because of it's extra "snarl." Just messing around, I tried running the GSR > Zen, using the GSR for rhythm & hitting the Zen on top of it for leads, and it put a smile on my face... I can't wait to try it at gig volume, with the band. Anybody else using these two together?