Harold33,

avoid the run around ( as i have done ). you should only rely on your empirical results. i have compared the two same frames ( shot the same frame 12 times in 120) and compared 100gr to 80gr ( also compared 80 to 65gr ) and used a 35gr sod carbonate/L B bath. all things being equal there is an increase in perceived sharpness as the sod sulfite decreases. i did not notice a drop in activity as the sod. sulfite decreased and the metol stayed at 6.5gr. Harold33. it's one test and you'll develop your own knowledge on the subject matter. a picture really is worth a thousand words...