I've downloaded the non-merged content as well as the CHD's so far.  And this will all be going on a PC run standup arcade.  So, if I want to create my own playlist from the original ROM setlist, is clrmamepro the way to go?  My plan is to download a new non-merged ROM set on occasion if there are meaningful updates, but I would want my slimmed down playlist to be able to run against these updated ROM's so that I only get the files that I really want.  I don't mind doing work initially, but I don't want to have to do that every time I download an updated set.
 
	Or am I just way overthinking this, and just need to use launchbox to create playlists?  Sorry for the dumb questions.