I just started mixing my own ansco 130 and after reading about people's reactions to metol, decided to substitute phenidone (1/10 the amount of metol required). I've made several prints (high contrast subjects) and the results are pretty good. What I couldn't find in my research was what the differences are between a metol based version and one with phenidone. I wear gloves and I'm not sure how my skin would react to metol. Would the original formula with metol produce better results? I've also read that phenidone needs benzo when substituting for metol. If so, how much?