dwmckee: Have not ridden any Vittoria tires since the 1980s.
Here in the desert southwest (Tucson area) our tire nemesis are catcus thorns and tiny pieces of steel from ripped up steel belted radial car tires.
Seldom get rain, but yes, if roads are wet/damp then it is more likely for debris to cling to the tandem tires.
Being a lighter team likely helps (we are just under 250 lbs duo) and tires with a kevlar layer help with puncture resistance. No such thing as puncture- proof unless you use solid rubber tires.
Tested those one year at the request of the maker. Great ride on super smooth pavement but any kind of rough surface became an issue. Worst part was crossing a cattleguard: the tandemn shook/vibrated like we were in the mids of an eathquake!
Also needed a special large tool to install/remove the tires; a real tough workout!
We've always kept track of tires/component wear as we do opccasional freelance writing and it's good to have actual numbers to quote.
Pedal on TWOgether!
Rudy and Kay/zonatandem