Bike pics, please?
Anecdotal, but I’ve been riding an ‘83 Super Profil rebuilt in ‘15 with tubulars and no issues since. Same tires. Granted, it sees lighter use in the rotation, but really rides smooth and doesn’t let down on mixed surface. Plenty of varied miles. Try quality tubulars and carry a cheap spare w/ pump. That’s the inexpensive option, and high quality. Go from there.