while i didnt go nova form and just had human/dwarf i found that inky aspect teamed with gravimetric emination was enough to disorient the whole mob group in what was effectively 1 move and then run forward. that was pretty team strong as it allowed the rest of the team to just take the group apart without taking a hit 
side effect was if it missed a lot of the group you were all of a sudden in a serious amount of bother but it certainly was knife edge fun.
later once i had mire fully slotted in human / dwarf plus eclipse etc was ready i found i only really put inky aspect and shadow cloak back on when moving thru the forms, took too long otherwise.
@ExtraGonk
OK folks tell me if the logic of this sounds about right.
I'm not fussed about solo at the moment, or PvP, what I love most is teaming (I usually build a team for all my missions), so I want to maximise what the WS can do that contributes to a team best, which is (presumably - correct me if I'm wrong!): AoE death and supplementary tanking, plus a tad of control.
So the first priority is to have Nova and Dwarf (which I'm 2 levels away from) slotted up 3/3 with thbf/endmod and damres/endmod respectively.
Then to slot up Nova's AoEs with 1 acc + 3 dam (the single target attacks can do with 1 dam in each).
Then to slot up the Dwarf's Antagonize (maybe a couple of accs and a couple taunts?)
Next priority is to slot up the 2 mires with 3 rech.
Next to slot up something that makes me survivable enough in human form so I can fire off the essential human powers that maximise my team output?
But the shields are expensive slot-wise, and annoying to retoggle when mezzed. A the moment I've got all three of them 3-slotted, because I've been playing around with going in and taking the alpha strike with Shadow + 3 shields, to Mire, then Nova. It has to be said this has worked fine up to the teens with mostly non-mezzing mobs, but there will be no point using this tactic when I get Dwarf - no point using this tactic unless I decide to go fully human in the endgame - so then I'll have freed up some slots, and am waiting for respec to rejig it like I'm outlining here. (I think the 3-shield human thing would work great into the later game with Acrobatics, but I don't want to go down that route yet.)
This is where it starts getting hazy for me. I don't know enough about the later powers yet to know what's essential and what's not.
The logic at this point presumably goes: slot up whatever maximises human survivability just while transitioning through human form to buff the other two forms. Mass hold or disorient could do this as well as shields presumably?
?
Any help and discussion would be greatly appreciated.