Hi Ryan; I have been doing some experiments with my film processor at work, to try and get my lousy brand of chemistry to run in good control versus marginal control. What I have found is that a temperature change does almost nothing to the LD (speed) but has a noticeable effect on the HD/LD (contrast). Translated, this means that the only thing raising the temp a bit will do is produce a more contrasty negative. That may or may not help to make a better print from an underexposed negative.
Butch Each man had only one genuine vocation - to find the way to himself. Hermann Hesse (Demian)

