youre right on the cards/omnis. i use the stock screens...but i dont tape outside so...(well ihave once, but they worked fine) i believe your right on the switch order, but i forget, bass roll off is hte line with a kink in it. -10 is -10 db. miine didnt come with a bar....i use a homemade vert bar. look around for some of my rig pics posts and youll see it.