I unfortunately wont be on board with these because I've already pretty much cased my entire NES collection in UGC's so it's a little late for me to go back now. However, if I was going for these cases I wouldn't be bothered by the fact that dust covers wont fit. It's a good benefit for UGC users since you can store the manual in the sleeve with the cart, and keeps everything a little more snug inside the case. But with the manual and cart clips inside your new cases, I don't think dust sleeves would be all that necessary.