Thread:IamShiek13/@comment-26863727-20160328020958/@comment-26863727-20160329175128

He has retained a few old Jedi principles out of force of habit. One is that owning slaves is wrong, though he allows other Sith to keep their own.

The others are:

He only permits the taking of one apprentice.

He has instituted that an apprentice must only defeat their master, not kill them, since even if they have been surpassed the master can still prove useful.

He only allows Sith with a good deal of mental fortitude to practice Form VII, and while he does qualify by his own rules to use it, he prefers Forms III and VI, pushing Soresu and Niman to new heights.