Although not identical, the predefined modes
FA-BEST_SP,
FA-MAX_SP and
FA-ULTRA_SP work with FreeArc's internal masks.

But to use these methods you can NOT choose DiskSpan mode (You can use it together with SPLIT mode or WITHOUT any split mode).
I don't know why these 3 methods don't give us the same results, taking into account that the final method formed on the command line is something like:
Code:
FA-BEST_SP >> -m9x -ld192m
FA-MAX_SP >> -mx -ld800m
FA-ULTRA_SP >> -mx -ld1600m
The other settings of the FA-??? presets use fixed methods.
See below the presets used (They can be changed in "DSG_Arc.ini" whenever you want).
Code:
FA-STORE=0
FA-MIN=1
FA-LOW=rep:1kb:256+exe+4x4:tor:1kb:h4kb
FA-FAST=rep:1kb+exe+delta+4x4:lzma:32kb:fast:32:mc4
FA-NORMAL=rep:1kb+exe+delta+4x4:lzma:32kb:normal:16:mc8
FA-HIGH=rep:1kb+exe+delta+4x4:lzma:32kb:normal:32:mc32
FA-BEST=exe+delta+lzma:32kb:normal:bt4:128
FA-MAX=rep:1kb+exe+delta+lzma:64m:ultra:bt4:128
FA-ULTRA=rep:1kb+exe+delta+lzma:128m:ultra:bt4:128