I don't think top mounting is really that much more work, In my CP that I am building I top mounted. All you do is cut a hole, and rout out the thickness of the mounting plates. Then I layered a 1/8th in of wood on top, and then I am putting 1/8in plexi on top. I went with top mount because it seemed easier, and by layering it I know exactly how long the sticks are and there are no bolts showing, real clean installation. Plus, the mount feels solid since the mounting plate has wood underneath it and 1/4 inch of wood/plywood above it.