Have you ever tried to dress a child who is squirming, and not cooperating? It's easier to dress Poser figures when they're in the default pose. Yes, you want to check your clothing to be sure it has whatever morphs you use on your figures. But that should be done toward the beginning of your workflow. You can call it research or preparation, and it saves lots of headaches. Tailor is the best tool I've found for duplicating morphs into clothing.