Tubulars are not obsolete. in fact more teams are using them now than ever before. Most of this comes from the quality from the mfg in the course of higher thread content in the tire casings and the sealants that are being used to prevent punctures.
One of the nicest tubular sealants available today is called Caffe- Latex and should be available from your local dealer. A 250 ML bottle and injection pump should cost you about $30. A 250ML bottle will fill 8 tubulars. Wash the pump out after each use with warm water... A bottle of this has a 2 year shelf life according to the importer.
Your experience may vary.
I am using it in all of my tubulars...
Cheers,
peter
Peter Koskinen
Chapel Hill, NC
prkbikes1@mac.com