Hi, sorry for the late response. You may be right, I don't understand the formula of Prescysol, there is information on the web and it is available in the UK. Having said that I know there are a number of very satisfied customers in the US. Further, I use the brew myself and dev whatever film I may be using at the same time, 35 or 120 together if necessary. The only occasion when a different developer might be used is if push processing is required.
Originally Posted by Ian Grant