Pan F is probably one of the best combinations for FX 39 that you can think of.
The film is very fine grained so the only disadvantage of FX-39 (not to work super fine grain) is no issue and all the other parametes afectable by development (speed, sharpness, detail contrast, copy range) are handled by FX-39 in an almost perfect way.
So yes, these two will be a great match.