Diafine isn't for "stand" developing, and I've never, ever, had uneven results. Did you follow the instructions? It is sensitive to over agitation, but does need some - just what it says. I invert for ten seconds initially then two inversions every minute.
Originally Posted by Oren Grad
3 minutes A plus 3 minutes B is standard but as folks have pointed out some films need 4+4 or 5+5. Within reason more time doesn't change anything so you can do 5+5 for all films if you want and develop different types together.