I was at the Serotta factory last week and they are still making Ti, but it seems that they do a lot of carbon these days as well. The one question that I had I never had a chance to ask: What %age of the frames are carbon vs. Ti, vs. Steel. They do make some carbon/ti frames too, so maybe the best of both. Their frames are VERY expensive.

And yes, they did show the special welding jig. They also make all their own fittings, shells, cable stops etc...

And anybody interested can visit on Fridays at 11am in Saratoga Springs, NY. Go in July so you can see the races (horses, not bikes) too. Nice town.