New track rider here, and I have never owned tubulars so I am a little uncomfortable about them. I like the clinchers because they are so easy, no mess, etc. I do not have any support and will also not likely have multiple sets of wheels, so my ability to change a tire/tube myself in a jam is moderately important. That being said I am assuming flats on the track are fairly rare.
I weigh about 160 and would believe the fastest clincher tire I can run on the ZIPP clincher rims is a 20mm from Vittoria,probably the KX unless there's another one out there I am missing. Original thought was to get a rear clincher disc rear and run my existing Flashpoint 80 front wheel, although I have an opportunity to buy a nice set of Cane Creek Endurance 85's (tubulars) right now, at a very fair price.
In terms of speed, the Cane Creek's are probably equally as fast as the disc/FP80 combo outside, however if I ever make it to an indoor track I am going to want to run dual discs.
I can run the ZIPPs at 125 PSI according to Zipp, which is probably slightly less than I'd want, but probably still not bad.
Another plus to the Cane Creeks is if I run those all year, then rent wheels for a big indoor event, these are very likely going to be tubulars. Then I am already used to riding tubulars...which I know when you first get on them can be a little scary if you're not used to it.
The Cane Creeks are about the same price as a single ZIPP disc...AND then I don't have to steal a wheel from my TT bike (not really THAT much of a concern... but nice since I everyday ride the TT bike) this seems sort of obvious that the Cane Creeks are a good wheelset for the money?