[quote=@Minimum]
Finished my App
[/quote]

The only problem I see if that twenty years before the battle of Geonosis, the Sith force tradition consisted of Darth Plegius and Darth Sideous.  He could have learned to use the Force from the Dathomiri, or an ancient form of the Sith force tradition from his people, though.  Or he could have met Count Duuku, Darth Sideous, Darth Maul, or maybe Ventress and gotten enough training to switch traditions, though that would be fairly recently.