[mhadden]

I mounted mine on the windshield against the A-pillar. Even with my height, it doesn't impair my vision too much...at least not where its needed most: front and side. But as you mentioned, the visor gets in the way, but you could always move it down a little bit to clear that. I never use mine, though. There's always those dash mounts that are a basically a plate and you mount the suction to the top of the plate instead of the windshield, but if you are like me, there's no way in hell you'd do it!