Unfortunately by the disappearance of the Amaloco plant in Ommen, Holland a lot of products are gone. Also the High Definition (non-staining) AM50 (60ml) developer from Amaloco. The content of this developer: Pyrocatechine, Sodiumsulfite and Sodiumhydroxide. It's a High Definition surface developer 1+29 in dilution. I would like to have a replacement for this developer. Is it wise to go back for a real Beutler type developer: A: Water 1000ml Metol 10g Sodiumsulfite 50g B: Water 1000ml Sodiumcarbonate 50g 50ml A + 50ml B fill up till 500ml working solution. Or try the more simmilar Pyrocatechin surface developer according Windisch: A: water 100ml Pyrocatechin 8g Sodiumsulfite 1,25g B: 10% Sodiumhydroxide solution 12ml A + 7 ml B fill up till 500ml What are the main expected differences about these developers?