he question i have about tubular tires is are they worth the effort? I guess it depends. I really like the "feel" of the tubular tire, for me they seem to "dance" and I love the sound of kind of a zing zing zing while you'r riding. I have yet gotten a clincher tire that felt as fun as a tubular.
On the other hand they are a pain in the ass to fix if you get a flat. I have never tried to fix on on the road and probably never wil. luckily their light enough to where I can carry a couple of them strapped to the back of my saddle with a old toe clip strap.
lately i've been compromising, i've had my sew up on the front and the clincher on the back. The tire on the front is kevlar belted. luckily i got a really good deal on a set of sew ups that had a shorter valve stem and since most of my rims are really old they dont need to be so deep.