Tiny pinholes, in the sky. Wasn't that a Don Ho song ? Anyway. I'm getting scattered pinholes in my FP+ negatives developed in HC110. I handle the damn sheets like they were nitroglycerin from loading to developing. They are tray developed and don't touch each other during processing. The tray bottoms are smooth and clean.

They are NOT dust specks. They are white holes in the emulsion. Any ideas ?