I'm going to try more developer volume (this should help with capacity/oxidation issues also), less strong concentration and slower agitation - looking back at the worst neg its most noticeable in the ridges that run side by side of the centre ridge (which splits half and half for 8x10") - I don't use these ridges for any of the formats I shoot so I might remove them also - they are for 5x7" and ?? damn, hang on, they'd be used for the 14" of 11x14" huh ... 8"x2 = 16" round minus 1" either side = 14" ... with a nice big ridge mark right down the middle to look forward to ...