That's the thing, even though my drive is 8Gb, I all partitions are below 2G, in fact DH0 is only 500Mb. Regardless if I format DH0 as Fast File System as opposed to SFS, it still will NOT show up on a real Amiga, only UAE will see it.
As for OS 3.9, I never have these issues, but I'm loosing favor with 3.9 quick.
I am interested in buying a copy of 3.5, but for the moment, I'd really love to see 3.1 supporting my 8Gb drive, and I'd love if either UAE or my real Amiga could actually see the SFS partitions I've been creating (according to the sfs docs).