I'm hoping to eventually have all three of these slings. So far, I've acquired the Zolo and Kozy through the swap boards. But I keep missing out on the KKAFP! With baby due in 6 weeks, I'm considering just buying a brand new one if it would be the best one to have early on. But if one of the other ones would be a good alternative, I might just keep watching for a used one. Does anyone have a strong opinion about which one will suit me best in the beginning?