In addition to this video they also have a general how-to use Apple Cheeks cloth diapers video.
Since working with the size 1 Apple Cheeks cloth diaper I have been able to get a better fit on Sterling. I haven’t weighed him in atleast a month, but just guessing he’s around 15-16lbs. I have also played around with using the shell as a cover by laying in the insert. This has worked out well for quick assembly