I'm a little worried hearing about the Bikila being a more snug. I fit snuggly into W42 KSOs. I want to stick with the W sizing in Bikilas because my foot is narrow, and I have a smallish heal, but I don't believe Vibram has any plans to start making W43 sizes :-(

FWIW...

I just bought my KSO's last weekend--M42 and they fit snuggly, just like you.  The only other VFF's they had in my size were the Bikilas.  I tried them both on and at one point walked around Travel Country with one on each foot.  I found the sizing to be identical and almost couldn't tell them apart when standing still.  I opted for the KSO's for the versatility and price, but left feeling confident that I know my size is M42 if I ever decide to purchase Bikilas. 

I feel like these larger shoe companies are at least recognizing minimalist/barefoot running.

All they are recognizing is a new market to exploit.  Any mainstream shoe companies who develop a very structured shoe and call it minimalist are no different than General Mills fortifying Cocoa Puffs with vitamins and calling it "health food."  It's a gimmick.

Eggzactly the point I was going to make!  Corporations are printing vines on hi-tech devices made from who knows how many toxic substances because "GREEN" is in.  Saying in your ad copy that your new narrow-toed heel-padded design caters to the minimalist is just an attempt to lure some market share from products that actually deliver on those claims.

Throw another "running pounded my joints" conversion on the fire!  2 weeks ago I had to rely on bicycles (which I love, but which require gear, racks, transport or traffic, etc) for my exercise.  Then a visit to the beach opened my eyes.  I ran barefoot, noticing how light I felt on the balls of my feet.  I ran until my lungs hurt without a hint of back pain and had a blast.  Then my sister-in-law told my wife how much she loves running in her funny new shoes that have toes on them, so she can run "barefoot" anywhere she wants.
 

I rushed to Travel Country almost in a panic that they wouldn't have any VFF's in my size.  I ended up with a choice of black KSO's or the blue Bikilas.  I opted for the "gorilla feet" and was instantly and blissfully addicted.  I am grinning through relentless (though good-natured) mockery at work.  My calves and feet are still tight and sore as they adjust, but I feel like my body just woke up from a life-long sleep.  I'm connected, I'm tuned in, I'm getting away with something sneaky.  This isn't a "really comfortable shoe," it's a total game-changer.  Of course I'm preaching to the choir here, but hey--epiphany loves company!