[Prophet Tenebrae]

4. How should the transformation be handled? Should it concentrate more on the physical or psychological aspects?

I think this one is relatively simple but it REALLY depends on all the specifics of the hulk (or hulks) in question. There's going to be a world of difference between how you handle a fairly simple savage she-hulk transformation where it's just the loss of control to rage and the normal shrippage versus a situation where a girl has two hulk personas within her fighting for control and is trying to keep them both in check.

The first one is really going to need to concentrate on the physical because savage transformations are mentally really just about the rage of the beast and there's only so much you can say about that.

A girl with multiple personas is going to have a ton of stuff going on in her head (for obvious reasons) and that might be MORE important than what's happening to her physically.