I recommend PFS. It's what I use for my 8GB CF. Had a terrible time figuring out how to set it up, googled and researched for days, finally a post on this forum by Paul1981 gave me the last pieces of the puzzle I needed to get it working. I think if you search the forums enough you should find be able to find a few posts by him, and by me, as I struggled through it.
Also keep your Workbench partition under 500MB and as the first partition on the disk for best compatibility with older software. I've found some utilities give corruption errors when copying to extended partitions (beyond what the Amiga could normally recognize back in the day), but Workbench 3.9 doesn't seem to have any trouble copying to those partitions, and I assume a more modern utility (like the just released update to Directory Opus) shouldn't have any trouble, either.
Good luck!
