I have been refilling pro-100 cartridges for a couple of years now.
I use precision color inks and resetter.
Easy to do. Yup, every couple of weeks when I refill my hands get colored, otherwise no issues.
I have probably refilled the present set 40+ times, and almost finished with my 2nd set of inks, 8oz.
I use them as test prints and give aways. I have never had anyone complain about fading- but I have never really tested it- works fine for my workflow.
I would never sell one of these prints- I have two pigment printers with oem inks for that.
I use this for throwaways and test. It is easy to do.
Gary