Re: Average stash sizes
Max 1600 (Grail Pile + Repeats)
Ave 300-400 (10+ Stashes Organized by Usable Items)
Had to trim down the single grail stash due to atma slowing down with it. If the stash management was fast enough and organized well I would prefer one stash for each game type (HC, SC, Modded, Vanilla, Untwinked Char1, 2, 3, etc).