Maco UP25+ is a good substitute for APX 25 (Cachet on other side of the Pond). They do a nice 100 speed emulsion which comes in every size you can think of.Otherwise Fortepan which is cheap and stains very well .Haven't heard about APX 100 getting the chop but I'm going to call up Silverprint and get the 411. At least APX 400 is alive and well .