I just received my Nitto Platrack and Sackville SlickerSack. It is indeed slicker.
My rack differed slightly from the images on the Rivendell site. The stays seem to want to be attached on the inside of the platform instead of the outside.
It seems fine however, so I’ll leave it. I did have to buy a hacksaw though. So I ended up with a new toolbox as well. The bag seems great so far. I just wish it matched my SaddleSack. But I knew beforehand it wouldn’t. Don’t get me wrong, it is lovely. And sure enough, my 13″ iMac fits fine! Yipee! Aloha! Sent from my iPhone