A:AnswerThe Wall Plate has a C Channel that can accommodate a lot of different sizes (horizontally). Vertically, it's about 12.5" from the center of the wall plate holes. There is not just 4 distinct holes. Instructions state it can accommodate studs up to 24" apart. The C channel does have supports spread out which may or may not conflict with your stud placement. For example, mine were 15.5" on center and I had to cut the wall plate to accommodate (per the company) in order for the TV to be centered.
A:AnswerIf you have the mantel to ceiling clearance - we only had space to install a 75 inch over our mantel. We bought the thinner soundbar to make sure the setup would pull up and fit over the mantel without banging the ceiling.
A:AnswerYes it can be mounted on stone or masonry, all bolts were included but it might be worth it to get additional bolts at a hardware store. Since it is not recessed the tv does end up being about 8 inches away from the wall when in the stored position..
A:AnswerLike many articulating mounts...most of the mount is attached to the wall. A bracket frame gets attached to the TV. The TV is then hung from its bracket on the wall part of the mount, and secured with screws to keep it from "lifting" off.