Unlike Brian, I highly recommend bulk loading your own film. As long as you're reasonably careful you should have no problems. I've been bulk loading Tri-X using a Watson loader and Kodak snap-cap cassettes. I replace the cassettes after 20 loading cycles -- a magic number I picked out of thin air. I always shoot a test roll through a cassette before I commit it to, ahem, serious work. I keep the Watson loader in a resealable freezer bag and the cassettes in plastic canisters from preloaded film.(posted 8412 days ago)I don't have an opinion on bulk loading other films since I like the results I get with Tri-X and D-76. The only other developer I've tried is XTOL with Delta 3200 (EI 1600/1+1/13'30"/24C). I'm indebted to John Hicks for that development data (though John does 1+1/15'/74F).