Aaaand here is where I'd put my Tier-5 loot..
[b][i]If I Had ONE![/i][/b]
Sorry. Lost the happy. BUT THE HAPPY'S BACK!
Seriously, why does so much bonus loot and regular loot still drop at Tier-4 even after doing Master activities? Been trying to get Tartara Gaze Tier-5 to drop with Triple-Tap and Rewind Rounds but not only does it not want to give me that roll, it doesn't even drop at Tier-5 ever.
I'm over 500 Power level now. I've been gone for some time so I have no idea if I'm missing something to regularly get gear to drop at Tier-5 from things other than featured raids/dungeons and Master activities like the Vanguard and Arena playlists.
Loot from activities is based on difficulty and it tells you what will drop before you start.
The MoT pillars have T5s once you reach 520.
I don't know how it works for heroic public events on distorted destinations.