Essay/guide/rant incoming
Adrenaline and casting:
adrenaline is shown below stamina, 3 chunks. each chunk increases attack power/sign intensity, I think 10% each totaling 30%.
I did think casting using "flood of anger" would be epic, and make specing signs pointless but its not. it does mean you can be full combat spec and cast the occasional fully speced sign, but most the time it will just be your lifesaving quen so you won't even notice a difference and you just lost 30% damage for it.
"rage management" does seem really good for full combat specs tho, since with 3 adrenaline you could cast quen 5 times in a row and that will literally save your bacon on hardest difficulty where enemies can1 shot you.
flood of anger and rage management do no combo well imo, so you'd have to pick one, and I'd pick
rage management personally. even if it means less attack power since its in the general school.
BIG EDITsome of what I wrote about signs was wrong, and I CBA to rewrite it so I deleted it.