No Heavy armor require a very good stamina sustain and a perfect ping for shuffle+rolldodge. Dreaghulk imho is a lot better than fury, giving you an huge stamina pool with bone pirate coming second if you run the health+stamina recovery drink.

I'm having good success atm with a 5 fassalas (1 body, 3 jewellery, greatsword / bow), 5 shield breaker, 1 kraghs build on live. I use the lava foot max stam + stam recovery food to make up for the healthy jewellery (also imperial race). It's a cool build because it takes away 2 out of the 3 main defensive options that opponents have - namely shields and heal spam. Currently the main niche stamplars have over other stam builds is their survivability; they can't really compete atm with burst. So it makes sense to run more of an attrition build, even in medium armour.

Next patch i think it will be even more potent because you also effectively deal with the 3rd main defensive option - dodging - with your jabs and crescent sweep. We also get 20% reduced jabs cost which is huge. This means we can switch to heavy armour to increase our tankiness even further. Next patch i will probably run 2 slimecraw, 4 fassalas body + greatsword, and 5 shieldbreaker (1 body, 3 jewellery + bow). Theoretically we will be tankier, have better sustain, and same if not more damage due to slimecraw and higher max stam (see if sustain is ok with max health / stam blue food or even tristat food). I'm very excited, will probably put out some videos after patch drops on ps4 if the build works out.