I feel now that I have reached a decent lvl (78) that tank armour is becomeing obsolete to many types ot armour coats. These coats i feel do not have enogh down sides, they have about the same ac as tank armour but do not have the downside of +100% on nano skills casting cost. I feel that tank armours ac should be increased slightly or that the decus armour coat should be decreased slightly (by like 8-12%). This i belvie would make all the difference in the world.
P.S. i am sorry for my spelling of you find any erors (not the brightest when it comes to gramer and spelling )