I'm afraid I agree with the comments re Perceptol & 35mm. Up until recently, my usual combination has been Delta 400 (35mm, usually exposed at either ISO 320 or 200) developed in perceptol; sometimes at 1:1, other times at 1:2. Either way, I've always been very very happy with the fine grain and vast tonality range - all the subtle shadow details showing - BUT the compromise was edge sharpness. When I first used this combination, when I made my first few batches of prints, I thought my new enlarger lens was a bit 'soft' but it turned out to be the effect of the developer. My usual print size is in the range 9x12 and 11x14. But, of course when such prints are viewed from a minimum distance of 18 inches, the lack of sharpness is no longer apparant. Reducing agitation for me resulted in unevenly developed negatives.(posted 8617 days ago)I'm now experimenting with X-tol. When I eventually win lotto and buy my 6x7 system, I intend to return to using perceptol.