I was looking at the prices for Tri-X in 135mm format on Freestyle's website. For 36 exposure at the regular price, it would cost you $98 for 18 rolls (about what you would get from a 100' roll). Their price for 100' of Tri-X is $84. These prices do not include shipping. So you would save the grand total of $14 if you bulk rolled the 18 cartridges IF you already had 18 empty cartridges, and IF you already had the bulk loader. If you bought Tri-X at the current Freestyle discounted price, 18 rolls of 36 exposure would only cost you $80, $4 less than the 100' roll. So why would you bulk roll? Is this just for films like Lucky that you can get cheaply for 100' rolls?