[markbarendt]

I just added it up and I guess you're right - it does save about half. It seemed to me that it didn't because Tri-X is available cheap in the Arista brand and HP5+ in the three packs. But for FP4+ it does indeed.

The other big thing that bulk loading does for me is to not waste as much tail. Like the OP I don't always do 36 shots on a roll. In fact 36-shot rolls are normally 15-25 shots too long for me, I don't normally leave film languishing in the camera so that means a lot of waste. 24-shot rolls from anybody but me cost me more per inch of film.

Hand rolling allows me to make two rolls out of roughly the same amount of film instead of wasting a lot.