Three of my vintage fixies have tubulars front and rear, another with a front, one with the Tufo tubular clinchers, and the Van Dessel has clincher cyclocross tires. I love the feel of tubbies. Buying on eBay makes both wheels and tires affordable. I want a set of tubular cyclocross next. I have several thosand miles on Tufo Giro Twix tires and have never flatted one. I do use the sealant. They wear very well and are excellent in the rain.