theres foan fillers that go in there that i didnt put on. but yeah i called the co that makes them and told them they fit like crap. not good on the 05 06 636, the older ones with the flatter surface it looks fine without the foamy stuff on them.

 

I have a set with the integrated turn leds. I love the way they look, and that they make me a safer rider. Without having a functional mirror to use I have to look over my shoulder before changing lanes.
I keep them on until I head to deal's gap then the stockers go back on. The only reason there is so I can quickly glance down (very quickly at that) to verify that if I have a trail they are still with me. That is for two reasons, 1 we like to video tape each others runs, and 2 to either slow down or stop at an appropriate spot in case they are behind me anymore for whatever reason...

 

For that I went and bought some electrical outlet foam insulators and cut them down to size, then they fit great...