Also, heavy armors unlocks at lvls: 11, 39, 46, 53
But new medium armors unlocks at: 11, 18, 25, 32, 39, 46
So, lets think like player use only heavy armor. He get first armor at 11 lvl, and then he need to whait (!!!) 28 lvls more to get second. Its too much, i think.