I've talked to multiple groups and have found many to agree that within the raid there should be an item cap of 3, but not on materials. Anytime you finish the raid, you have a chance to win any item in the raid, minus materials. Each boss should reward materials, as well as the materials chest that already exist, but each boss will drop a random useable item for each player to a maximum of 3 times. Once you've received an item 3 times you cannot relieve it again thus increasing the chances of getting an item you need. That ways people are not wasting their lives doing the raid. I've received the same greaves 5 times... And a friend received the gauntlets 4 times on hard in the same raid, each from 1 of 2 bosses... This should not happen, in my opinion that is. If you won't adjust that, at least incorporate trading amongst clan members or people inside the raid or mission for a limited time. Once the timers run out, you cannot trade the item away and within this time you may only trade it to someone in your fire team at the time you received it. I think that's reasonable?