There are a few "rules" John Purcell lays down which are actually just "ProTools" rules. Stuff about using time compression and expansion and some of the data management he does. But otherwise -- who'd have thunk about reversing room tone to make a longer loop? Oh man, that changes my life right there.
§Man, I just had the biggest technical problem recording some ADR. Kept getting a "pop pop pop" sound on playback. I tried everything. Reboots, switching FireWire audio devices, flipping from ASIO to WDM. Finally tried recording to a new track. That worked. Sheesh. Very weird.