Both the prewash and the stop are "optional". OTOH I need a prewash with Supra III to avoid the green meanies. Don't know who coined that term but when I saw it I knew what they meant. I wouldn't get just green borders I'd get a whole green print.
Supra III is a fairly old paper that hasn't been made in a few years. If it hasn't been in the fridge/freezer it may have gone off.