It would come down to personal preferences.
I personally find it alot easier to chain KDs with skills that carry Cast time; little prediction is needed unlike instant-cast KDs. I use it occasionally for casual duels , those locks are still manageable.
@acira
A mixed SM is entirely possible, it's just the fact that no one's willing to give these builds a try.
If one is able to achieve a high end sword , preferablely +11~+15. FGB maxed, does massive damage, considering most MAs run SR over Might. In fact, I've seen 6k non-crit FGBs, it packs alot of raw damage and reasonable CD.
http://www.dbocom.com/skillcalc.php?...31147451014000
FGB would be 4/4 in this case.