Response to The Problem with Xtol - Some After Thoughts

Well, another batch went just fine. Some HP5+ at 1:3 and a couple rolls of FP4+ at 1:1. It is sensitive to agitation as I added just one more twist per minute and could see a noticable density increase compared to what I usually get. Don't know if other developers would react the same or not. Dan- I'm not suggesting any sort of error or sloppy technique, just that there has to be some factor that can eventually be identified that causes the failure. The failures may appear random, but they still have a definite cause. Note that the cause doesn't have to be the developer. There could be a variable in the film that causes failure with XTOL but isn't detectable in other developers. Probably unlikely, but it pays to consider everything until enough clues develop to narrow the search!

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