I wanted one partition with an 8GB CF and ventured to setup using SFS, got it setup and partitioned and it worked great, except for some applications installers use their own calculation to estimate available drive space and with my the drive values being so high, it returned negative values and wouldn't let the installer finish as it thought it was out of drive space.
I opted to setup a small FFS for my boot partition and use SFS on the other larger volume, have not had issues there. If I do, I install on my boot SYS: drive which is running FFS.