Agree totally.I'm all for pushing new boundaries, but I wouldn't want to make shooting a wedding any harder than it needs to be, particularly if you are going to be THE wedding photographer as opposed to someone taking photos at a wedding. You can poke fun at the size of the big Canon and Nikon gear but geez it can make your life easy in this kind of environment (in capability, if not easy on your back ).
And he's here tooAgree totally.
When I was shooting weddings, I would use something like a Leica X1 or m4/3 as a second (or third) camera, but never as the main one. Flash Gordon over at mu-43 uses a Leica and mirrorless cameras, but he works with a partner, I believe, who uses DSLR's.
Wow. Of course, all this proves is that a really good photographer can use a camera with really good IQ to get really good images in spite of AF speed, FL limitations, etc. Heavy emphasis on "really good photographer". I certainly couldn't do this.