Loading is not the problem, BUT the developer will be more active if you are using shorter rolls, since it does not exhaust itself the same way as with a long roll. You will have to recalibrate your system, since developing will get shorter when you use one shot developers which have a higher dilution. This might also affect the contrast. Despite this I also load bulk film. Find a loader that works without a felt light trap.(posted 8423 days ago)