My thought is tubular for track, clincher for road. Current clinchers have come a long long way from the old ones and you should be good with either - provided you know how to glue a tubular. It is nice to drop the pressure in a tubular down to 80 to 90 pounds and watch your ability to handle a corner at speed increase, especially in the rain, but you can also go to a 25mm clincher and get the same out of it as a 23 tubular. I would have never raced on a clincher 15 to 20 years ago, but today ... not so much. Tubulars still win in my book, but the difference is not enough to mess with the cost/time of a tubular.