I have to ask those that have these fitted "how the fook can you see anything"?, I`m constantly adjusting my standard mirrors and would like something even larger.

Almost got "impaled" by a mirror stalk once,,wasn't good,,,first thing I install on every bike I've ever owned is a bar end mirror and on the SD it's a CRG lane splitter,,,good kit fer sur,,,

I only have mirrors for legal reasons. I do use them but would prefer not to have them, as checking them can be more of a distraction. I have the CGR lanesplitters as well, hardly notice them but can see plenty with them. The stock mirrors look like elephnt ears!

Don't know if it was just on my sd or a common problem, but my original mirrors became useless as soon as i would think about fast road riding. The bar end mirrors don't vibrate.
And my left mirror used to fold in above 160 km (100 mph)

I got some (relatively) cheap ebay billet bar-ends and I agree with everything coyo said above, well except the last point - never needed customer service.
In addition, the "bad" point about them is that you really look down and away frm the road to look at them. I think thats no big deal compared to the benefits, but it takes a little while to get used to it. Oh, they do make the bike a bit wider too, if you're an agressive lanesplitter that extra cm or two can make a noticeable difference. I ended up shortening my handlebars by 2cm on each end. Even though the lanesplitter mirrors can fold back, i'd rather not be clipping cars to test it.
I was surprised to actually see more using these than the elephant ears due to the convex surface.