none said:morgand1 spend some time re-sync'ng two audio cassettes to create a stereo mix, different goal, similar challenge.

That sounds like a miserable job, sync *and* phase drifting in and out...

Anyway, thanks for the tips, Puggo and all. I have found that most ADR is only "pretty good" in movies and tv, which makes the syncing even more difficult - decisions like "do I match the mouth movements or do I match the original sound from the released film?" come up). We'll see how this goes.

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edit: I was unable to get near this last weekend, it will be a couple weeks before I am back home to try again. Apologies to anyone who is actually following this. :)