I'm thisclose to placing an order for alva's - I was thinking of ordering 20 just to get the free fast shipping, not to mention it would make our laundry routine easier! How do you feel these run size-wise? We have a skinny mini baby. She's fitting well without leaks in our BG's and fuzzibuns, but the flips are a disaster right now. Is the fit comparable to any of these? I'm really hesitant to order a bunch if the fit is more like the flips or larger than the BG's or FB's. Thanks!