That might explain why my grandson's quilt is all matted on the back after multiple washings. I have backed many baby quilts with minkee and have given the quilts as gifts. I don't usually get to see the quilts again as they are in new homes (hopefully being loved on). But I recently saw my GS's quilt and was sad to see the state of the back on it. BTW, I do have a walking foot and don't have to use that many pins. I wonder if you could use good ol' school glue or a glue stick instead of all the pins.
Your tutorial was great!!! Good luck with your etsy store.
Echobluff said "I have used Minkee on several throws too. It's been my experience though, that when you wash them, don't use fabric softener. It seems to mat the fibers on the longer Minkee types. But that's just me..."