This is far less insane than Memstrips. It’s nice because it could actually be better than Grimoire in cases where you don’t have it JUST because it costs 0. You could even Clone Chip it in weird situations where you need MU badly. The downside of having to install the program after Progenitor is kind of whatever because you almost always install medium last and it’s the best thing to put on it.
The biggest issue for me is, is it better than Grimoire? I’m not really sure. If I was going to think about running a 3rd MU card, I think Progenitor would be better than the 3rd Grimoire, but I’m not sure about cutting one or both already played Grimoires for a Progenitor. Maybe it’s the sort of card you want in 60 card Maxx ;D