Hi Chip.....been there, done that with a number of helmets. Right now I use the HJC Open Face style. The HJC's seem to fit my head best of all. I've tried on their Full Face Carbon Fiber AC 12 a number of times in the showroom.....mighty tempted. Got a good write up here....

http://www.webbikeworld.com/r2/motorcycle-helmet/hjc/carbon/

"You're a long time underground!"