loot can become a serious problem in guilds, i've seen it myself. we're going to try to eliminate that in our guild. as far as 5 man groups go, here is what we suggest:

1) all BoE items greed roll, unless someone needs it. at that point, the person needing needs to inform the group in chat first, then roll need. this will keep you from looking like a ninja.

2) all BoP items pass if it is not usable/or and upgrade for you. if the item is an upgrade, need roll. if the item is a small upgrade for you, but huge to someone else, please pass it to that person as it's going to make us stronger as a whole

3) if all else fails, use master looter. hold all BoE until the end of the run which then they will be rolled on, all BoP handed out as they drop.

now, once we get to raiding, that's when i've seen people get greedy. that epic drops and it becomes an "OMG a PURPLE" type of deal. for this reason, here is what we're going to do...

1) Master Looter will be in effect
2) the ML will call for NEED rolls for your main spec, which then if it's an upgrade to your MAIN spec, roll on the time.
3) if no one wants for thier main spec, then there will be a roll for offspec
4) if no one needs/wants the item, it will be sharded and the shard going to the guild vault for guild use.