I slaved the whole /kit member and only got 6 diamonds. It's supposed to give you 8 Diamonds for a chestplate 5 for helm and 2 for sword ext.... So why does it only give you 1 diamond per diamond item. Complete waste of the armor if you only get one diamond form a piece of it.
slaveing is low becuase I guess your slave mcmmo skill is low higher it is the more items you will get.