A PUL outer? Hmm,... I don't really do PUL to be honest, I'm more of a minky fan. My stash is mainly DM's and WW, which are minky - I do have a few cotton outer WW's though, so you could try them? They are very generous in their sizings.

Oh, and don't be put off by the IB's being low in the rise for tall kids - my kids have fit fine in them (until they hit the large size because then we hit a wing droop problem) but the rise was always fine for my kids, and you know they are all tall. They aren't the most super absorbent though, so thats why we don't use them anymore, but in terms of fit for tall kids -we never had a problem.

Swaddlebees are a good pocket - pul outer as well - but I HATED stuffing them, tbh, they were a PITA because they are so trim its hard to get my fat hand in there.. LOL