I'm new here, but I use all "Almost in ones". My entire collection is made up of FB (about 10 small and 12 medium) and Apron Strings (16 mediums).
I stuff everything with Hemparoos, one during the day and 2 at night. I only bought large hemparoos because, well, I am cheap, but I fold them to fit in what ever size diaper I am using and they work just fine!
When she moves into large I plan on continuing with the above system!