What I've sent back:
Garneau Robota. Not any bigger than any other L helmet.
Specialized Aurora (tried it in a bike shop, it is the closest I've found but not much better than my 03 pneumo). Ugly $20 helmet style
Giro Atlas II
Bell metro
I tried a Limar 730 because someone in the clyde forum said it rode lower and fit big heads. It fit very similar to my pneumo Not terrible, but not a lot better. I sent it back.

I like the style of road helmets and less-radical helmets like the Metro. I'm not afraid to spend $$$. I spent a lot of money just to try the limar and the metro above (I bought and returned a loaded metro)

Anyone try Limar "Big One"? I think this helmet must not really exist in the states. Limar's web site hasnt been updated in morethan two years.

Pics of the pneumo attached. You can kind of see that althugh I can get it to stay on my head, there is a space above my head and the shell doesn't come down to rest on my head, it just hind of hovers up high and the strap keeps it on. If the shell shape was closer to my actual head, it would fit great. The band fits. It really is the best I've found. My girlfriend has a Giro Gila from dicks in a L. If I wear that adjusted all the way out the tightness gives me a bad headache and it takes a day for the mark it leaves to go away.