I don’t have a lot that I learned from doing the edit today.
Wait, no, I have this: Do not, do not get sloppy about syncing. Skype is pretty awful about synchronising audio, which is why I stopped trusting it. Syncing two people is pretty easy. Syncing three is a little more challenging, when you need to avoid crosstalk. Four is a total beast.
So don’t trust Skype’s record. If you’re going to use it, you have to manually protect against crosstalk, which means video – so people can read one another’s behaviour easiest – is probably best.