I second the Spuhr! $ 400 is steep, but its the most thought out, heavy duty, and user friend mount i have. The cant bubble isnt the easiest to see, at least in white( got a green level tube spuhr replacement for 12 bucks) but if i choose to ad a angle cosign, its even got an adaptor for that as well. You spend $ 3000 on glass, whats stable protection worth? full disclosure, I also have zero kids, and 2 incomes, between the wife and i.