I run tubulars, Tufo tubular clinchers, and clinchers on my five fixies.
I love the ride quality of the tubbies. The Tufos use the sealant.
I'm having a Mavic OR 10 (330 gram) gold anodized tubular laced
to a Dura Ace track hub soon. Now I need to build up fixie number
six to go with it.