They would still automatically add letterboxing on 4×3 screens, right? If so, and if I could just render out a letterboxed version from FCP if I ever needed a letterboxed version for Digibeta or Beta SP, then is there really no reason not to transfer S16 footage anamorphic?
Yep.
Good luck with the film. Here’s my email if any more questions come up: guy (at) guywagner.com