Wow, talk about an old post...
Since I posted this, I have sold the TS9 and upgraded to the TS808 reissue. I will be getting a Maxon OD808 next. Yeah......
In any case, the real thing sounds way better than the emulated version. Not just "slightly." I forget what the labels are on the Screamer in the POD XT but they are in a different order than they appear on the real unit, and they have different names. I think the Distortion should be called Drive or Gain or something, and Volume or Mix is Level... or something... I will check on this when I get home from work and post back.
The TS808 reissue sounds better than the TS9, but obviously it does not have true bypass... which is lame for live situations where you want to go clean, etc.