Nah, once you mount it it's pretty damn snug, maybe over time the spring loaded clips may give (wear out), but I wouldn't say it vibrates to the point where you'll want to find a way to mount it better. Turn your stereo up and you'll notice your side view mirrors vibrate, they're no different.
For me, it doesn't shake more than the stock mirror does, but I'd assume the larger/longer the mirror is the more likely it is to shake/vibrate more. I don't think 3M tape will do anything, in order to get rid of the shaking/vibrating you have to find a way to stabilize the stock mirror better...
That's with no extra effort though, if you just lean forward a tiny bit it's easy to see your blind spots. Go look at the picture @Flippercon posted on the 2nd page, that's the view you're describing, but think about what you'll see if you lean forward just a tad, if I do that I can see out of...
Yeah, went in for touch-up paint and I saw them so I picked one up. I know Nissan dealers carry them like they're Nismo products LOL So, check them out as too if you can't find them at Honda.
What up Paul! Not sure you remember me, met up at Krispy Kreme a few months ago. Anyways, does that mirror just go over the stock mirror? Or, how is it mounted? Looks pretty nifty.
If you want just a wide view, go with a flat one, but if you want a wider-ER view then go with the convex one. It really helps, I can see outside my rear passenger window with it, it's awesome. Just remember, the convex mirror makes it a little harder to judge just how close you are to things...
I don't think they're getting headaches from "staring" at the mirror, even glancing at it (at first) almost makes your eyes want to cross, at least that's how I felt, so I can see how it would give you a headache just from glancing at it, especially if you glance at it several times a minute...
Yeah, I didn't get a headache at all, my eyes just got a little funky the first few times I looked at it...but now it feels completely natural and I don't think I could revert back to the stock mirror.