DD, while my tubular experience is not extensive, here's my two cents worth of advice:
Tape is easier and less messy. I've not had any issues with my taped tubulars.
I've not had any punctures when using Schwalbe One tubulars. While not as light and supple as the highest end tubulars, I feel they strike a nice balance between protection and performance.
Since riding tubulars I carry a can or two of Vittoria Pit Stop. While I've never had use Pit Stop on a tubular, my experience using it on a fast clincher tire and tube combo has been positive. The sealant did the job and has remained liquid for over a year.
Best of luck and happy riding with your tubulars.
__________________
Bob
Enjoying the GA coast all year long!
Thanks for visiting my website:
www.freewheelspa.com