I just loaded my first 4 rolls and I have a few concerns. First off, The bulk roll I loaded, the seals were broken from the store. With Bulk rolls from Ilford, are the bags sealed or is one end open from the factory? Also, my other concern is when pulling the film from the light tight chamber to tape on the spool, the barrel shifted where a small amount of light could get in. Is that 100' roll trashed due to that?