Let's do it this way. You tell me which of these had the sulfite. And if it seems vry obvious to you, remember that these are, if you view or print them to 10" height, 32 X magnifications of 35 mm HP5+ frames. Also, I intend to do other values of sulfite between 0 and 380 grams per liter to see if there's a break point at which the developer activity takes a jump.