Wonder if the RDB has got confused? Can you delete all file systems from the RDB and then confirm they're gone? Only do this though if you don't care about your data on your drive - I don't want to be the one responsible for you loosing any data.
Also, after changing file systems or partitions I always power cycle the machine to properly refresh the changes.
After confirming you have a clean slate, then install your first file system and partition and check the mask and maxtransfer and dostype are remembered. TBH, I use HDToolbox as supplied by Commodore as it always seems to work (you have to press enter in the boxes though before saving changes for it to remember maxtransfer/dostype and any other keyboard input).
Then confirm changes. Quick format. Then, move onto your next file system.
P.S. SFS v1.279 is the latest version, not the one on aminet. I can't remember where I downloaded it from though, sorry.