Sean,

I would think that depends on how you intend to process the film.

If you are tray developing then it would seem to be of limited usefulness since a large portion of the chemistry in the tray is water and that would affect what temp that you are holding the chemistry at.

If you are planning on rotary processing, then yes it would be helpful.

If you are planning on tube processing as in BTZS tubes I would think that if would be limited in usefulness.

That is my opinion and it may not be shared by others.