Hi Mike, always with 2 plugs, so that you can ride it as a Tri! and remember, when removing them, just push down on one end on the top with the back of a screwdriver handle to pivot it out - no need to stick a sharp screwdriver on the side or try to pry it out with fingernails (talking from experience!! :-) )
If it does not come up then on the opposite end, give it a little bump and that usually loosens it right away. Obviously make sure screws are loose beforehand.