You clearly know what you are doing. All I am trying to say is that its not about how many hours you clock in Destiny, its about what you do. Strikes and Crucible are clearly not the way to go when hunting for exotic weapons. The most unlucky guy in my raid group clocked about the same amount of hours as me (no where near 1200hours! More like 400-500hours)with the same completion rate, got his first Gjallarhorn last week, from an Atheon HM kill. But he already has all of the other exotic weapons. Consistent weekly raid completion is the most guaranteed way to get exotic weapons. There will be stretches of weird multiple duplicate drops, sometimes for weeks or even months, but its a lot more reliable than any other available activity in Destiny. BTW. If you are on PS4 and need a regular raid group, message me and we will get you a Ghorn somewhere down the line.