Hey all. I'm in the process of building my PowerTap wheelset, and have come to decide on getting Velocity Aeroheads for the rims. However, in the rear, I have the option of either the regular Aerohead or Aerohead OC. My questions are: does the design of the OC that much better for the rear than a normal Aerohead? Any experience with the rim? Thanks.

Bal

PS. Here's a link to the rims: http://www.velocityusa.com/default.asp?contentID=580