I don't know but I prefer running it even with random players, to alone, so don't usualy have a problem with the time out. but spawning into a different instance to players running up the stairs alongside me does grind my gears... But that said I find that if I sit and organise my inventory for a minute or two at the terminal I'll soon get a group of buddies! However even if you could only hold one of each type of offering that'd be a massive improvement on the one, seriously one??? Bungie, Make them take a whole slot if you really want to keep the numbers down, the reward drop of anything good makes grinding strikes more profitable if that's the concern. I just like it for the fast paced manic killing sprees and chaining of supers with raining orbs and flaming axes of doom that a group of guardians having fun create!