The downside is that it adds all the CR2s and props to the new CR2 and can be a fairly large file. Of course, hard drives are getting cheaper and the savings in time can still be worth the added space. It's definitely worth doing for characters that have loads of clothing and props on them. Some armor sets have over 20 pieces to be conformed, so the tradeoff is well worth it. Anybody tight on space would have to think about the trade-off.