It should have a Check list system. If thr Pinnacles granted one pc and didnt repeat the same pc until the full list if "checked off" then it would be better. So you have 8 Total ( 5 Armor and 3 guns) . Every Pinnacle completion grants one random item of the 8 slots. Then it just grants out of the 7, then 6 and so on. So you know after 8 pinnacle completions.. you can increase each pc of gear and not get 8 Chest pcs...