+1 to this
The 700x28 Vittoria Corsa G+ Control tires paired with a latex tube is the best ride I can get on my bike. I always start out with this set up in the spring and keep it until I’ve put in ~1200 miles.
Then I switch to 28c Schwalbe Pro One Tubless for the rest of the summer almost exclusively because of ease of flat repair. FYI - @Nate_Pearson uses A 25c in front and a 28c in back with this set up. I might give that a go this year.
I’m also considering using the S-Works Turbo Cotton 700x26 w/latex tube as a race-specific tire this year – but I won’t roll it for more than 500 miles. It’s the grippiest tire I’ve ridden in my life, but it will flat pretty easy.
Sorry – I know that OP was specifically asking about tubulars…but I have sort of a tire fetish and love swapping and testing new ones. Hopefully some of this is helpful.
Cheers! 