I want to do a new install of Amikit and am just wondering if there is a best (legal) option to choose when it requests the source of Amiga files e.g. OS 3.9 CD, etc?
I would recommend AmigaOS XL. The CD contains OS3.9 system with incorporated Boing Bag 1 update.
I have an install disc for Amiga OSXL and one for OS 3.9. I did an install on an older computer a couple of years ago and the Amikit emulation ran the CPU at 100%, that was using the OSXL as source files but don't know if that was the reason.
No, it has nothing to do with that.