Re: The economics of hybrid diapers is broken
You could just put a prefold into the Flip cover... that's a lot cheaper. Prefolds last for ever and ever. And there's going to be baby poop on baby clothes at some point too so... heck you can even make prefolds out of tee shirts which can be cheap(er) or even free. There are also cheaper covers than Flip covers with almost the same options.
However, whatever you want to put on your kid's butt is fine, it's your kid.