I have had fish eyes before, but that was obvious contamination of some sort. Could it be the thread? You replaced everything, but did not mention if thread same or replaced with new.
Did not replace the thread, and I will...but I'm starting to think it was crystals in the finish. Both the finish and syringes are old and I'd had crystals form in both. I microwaved the two parts and cleaned syringes, but I'm thinking I missed some.I have had fish eyes before, but that was obvious contamination of some sort. Could it be the thread? You replaced everything, but did not mention if thread same or replaced with new.