Bought this AED baseplate to try out, based on the answer to one of the Q&A by Summit(might of actually been me LOL), turns out it's not what they said so I'm gonna return it. Doesn't have vac ports and yes I could add them but why when I can buy another brand with them already and it cost me nothing. Also noticed a couple other things that I don't like about it so figured I'd share, not anything wrong with it really just stuff I noticed. The shafts aren't machined flat and there is no 2ndary TOP adjustment screw. Nothing major just stuff that comes on other baseplates, so might as well buy one of them.