The one in Cresco is not very big...I've been there a few times and the only mibs I saw were modern Asian cat's eyes. I did walk away with a few slag pieces but I don't think they put much into restocking their goods.
Harmony is kinda up and down. Sometimes I walk away empty handed, other times I scored multiple times in a single visit. Vendors usually come in the first week of each month too collect their money from sales. This is usually when they add new inventory. Some live a good distance away and they usually kill 2 birds with one stone doing it this way.
Had a thought..ever try Crazy Frank's? I see it advertised alot on TV and I think it's within distance of you. Never been there myself, but it's a sizable place from what I have seen and heard ð