When carrying a long board and soft board, I needed to use padding between the boards, I used pipe insulation from the hardware store. Fits easily on the round bars from the Yakima set up on my 04 Camry, does seem to cut into the paint on the bars. There seems to be no additional noise from the mounts.
The simple truth is I wear glasses and I hate it. Before I would go on to the mountain with my Spy goggles and no glasses. This ended badly. So I gave these Smiths a shot. They fit great and the vents work as advertise in keeping everything fog free. However, there is always a however, when you stop moving, your glasses start to fog up. The goggles aren't the problem, I would imagine that any goggles designed to be worn over glasses will perform similarly. The only time Im not moving is when I come to the bottom of the run, I then just wear the goggles round my neck, problem solved. Thats a small price to pay to be able to see the details in the snow. I might give the antifog stuff designed for Scuba diving.