Originally Posted by Schoenfeld
4M autoconfig-mem will only work under special circumstances that I do not want to reveal at this point (yes, there's still an unannounced feature). 2M Autoconfig-fastmem will definitely work in 68000 mode. We will probably be able to truncate memory size in software (on-the-fly patched Kickstart), so no need to reduce memory size of the expansion you have.
Further, trapdoor memory expansions will work: If you have one of those up-to-1.8M-trapdoor memory expansions that require a Gary-adapter, you don't need to remove it. That memory can be added to the freemem pool as well, giving you almost the amount of memory that you want.
Interesting, thanks for the info.