Luck good/bad is a goofy mindset. Something either works, or doesn't. It will work or it won't...there isn't any "maybe" or superstition.
The segment mode message in that installer can be ignored. That's what I did. anyway. I ignored it and went through it. My Picasso 4 wasn't in segment mode. But I brought it to attention to this form in a different thread. That's why I commented here about newer P96..vs an older beta update to more current.
Tony has also added Picasso 4 Zorro 2 and Zorro 3 modes to WinUAE since then. At some point I'll test those more. But I've been doing a lot of other stuff with my real A4000 and WinUAE lately.
I'm not using MapROM.. With OS 3.1.4.1 it's not really _need_. It's a bit quicker than OS 3.5, and 3.1.3.1 is like 3.9 got kicked in the ass to actually function better. Haha! Great job with the continued support - all involved.