Whammy 5 : It's the one

I don't use this thing a whole lot, but it's one of those things that every guitarist needs to have access to. Rage Against the Machine (if you're into that kind of thing), David Gilmour, and Johnny Greenwood have all put this to very good use. This does "My Iron Lung" very well...the "classic" mode is great for replicating the glitchy sounds of the original, and the "chords" mode is good for if you want something more precise or want to play multiple strings together. No lag or tracking issues. Use detune for a super thick chorus sound. I thought about buying the upgraded model, but read some less-than-stellar reviews, so I decided to stick with this. Like I said...I don't use it a whole lot, but I'm very glad to have it.