Is Thunderstorm at all useful anymore? I'm finishing up the last skillpoints on my CL/orb sorc. Putting 2 points in nova and TS would give me a TS of 1.9k-2.4k putting the 2ps in charged bolt instead would raise CL 200 dmg and Lightning 400. What would be most worth it? Its a strict PvM MFer/rusher.