Let me just make it clear, I was referring to the film, not the company, in the thread title. The "WOT A BURN" expressed my confusion and disappointment at missing out on an eagerly anticipated weekend of shooting my first B&W LF in quite a while.
Having read the other thread on this topic, I see that this is a problem that affects random packages of film and that others are shooting it without problems. J and C says that they are moving to correct the problem now that they are aware of it. It was just my phenomenally bad luck that the first sheet film that I have purchased in years happened to be a bad batch. I will contact them on Tuesday to try and get some Pro 100 that will fit my holders and reels.
I've never had a problem with Jand C's quality or service in the past and will not hesitate to purchase from them in the future.