What helped me the most on my baron was getting the pantour front suspension hub. I've found that road vibration is more than likely the leading reason for numb feet. I can go 50 miles on smooth as silk roads and have no problem without the suspension hub. Get on some chipseal and the feet start going numb within a mile. I haven't had quite as much problem with the vk-2 carbon bike, the carbon seems to absorb a bit more of the vibration, but it sure would be nice to have a pantour on the front of that bike too. Also the time impact pedals have a very large surface to distribute the pressure on the feet. Carbon soles in the biking shoes also help.