Re: better fitting cover?
I prefer proraps over bummis - esp over a fastened pf. Wiggle Worm Bottoms are one of my favorites! We use those a lot around here. They are great over fitteds, tri-folded pfs, or with the snap in sleeve that she offers stuffed w/a pf. I've even used them over fastened pfs too and just tuck the diaper in around the legs. If you like trimness - Strawberries and Sunshine covers are almost the same as WWB only slightly trimmer. They don't work well over a fastened diaper, but are GREAT with tri-folded pfs.
Wife to 1 Mama to.. too many to list!