Well, outside of 300pts, I would not use both Nym and Vader LotDS together. Instead go for Mithrawn and Tarkin. A triple +14 for 40 from Nym will be more productive than a quad +10 for 30 almost every game. I actually just finished making a new Nym squad, so I suggest checking it out.
Basically, I used the Merc Commander as well, since he gains opp from thrawn and extra from Tarkin.
Double, deadeye, Opp Mercs are something to be feared, and Thrawn really really helps overcome the merc problems. Intuition and swap basically makes the merc SA almost a non-factor - and furious or deadeye pretty well covers you as well.
Here's the 200 version. I'll go make that 300pter in a minute just for fun :)
http://bloomilk.com/Squads/ViewSquad.aspx?SquadID=29627