I'm confused as to how you qualify for heroic gear rewards from follower quests. Currently, my follower raid quests give me heroic gear for highmaul, but only normal for BRF. I don't have any Imperator or Blackhand kills on either normal OR heroic mode, so it can't be an end-boss kill that triggers heroic gear rewards.
I have 21 normal HM kills and only 10 heroic kills, but for BRF, I have only 10 normal kills but 16 heroic kills; I'm 5/10 normal for BRF, but 8/10 for heroic. So I have more heroic kills in BRF than normal, and more heroic bosses down than normal. I should be getting heroic gear rewards, not normal. It's almost a moot point now, because I have only 6 more gear pieces left to upgrade to 685 level and I'm more likely to get them from boss kills than follow reward caches, but still...it's kind of annoying.
Oh, and all of my follower's ilvls are maxed out at 675. I've heard that you need 15 kills in any given difficulty to get the follower difficulty tier unlocked, but that can't be right because for HM, I have only 10 heroic kills and yet I'm getting heroic follower rewards.
Can anyone shed some light on this?