Thank you for the follow up. I should have mentioned that I was using the 4cm, since I would really like to use the real amp sound for the main amp. In either case, the information you have provided is still very useful as I continue to mess around with the equipment I have.
In my imagination, I would have liked to achieve a situation where the loop is recorded on the main amp and sent to an external amp (either an identical copy with effects, etc., or an unprocessed raw signal to be processed seperately by the external amp [like having the looper in the pre position). Ideally, i would have liked the POD Looper to have separate pan settings for the playback (or something like that) to have the playback be on the right channel (which would then go into the second amp). I guess I could do this with a seperate looper, but then the PODs looper (which I like the convenience of) would go to waste, and it would be hard to justify purchasing a separate one.
Maybe I will forego this idea and instead focus on getting some cool stereo effects with my two amps for things like delay effects, etc..
Ramble ramble ramble...
Thanks again for your help!