Another question... I keep reading about NIP using a sling and an ERGO. I have both, and am wondering if anyone can help with the "how to" for both types of carriers? My LO is 11 weeks and we're still using the infant insert in the ERGO. The sling I have is a Cuddly Wrap, which is basically the same as the Moby. I'm really keen on figuring this out, as the little guy roots like crazy every time he's in the sling!