Schwalbe Marathon winters, 35 mm, at 60; probably need to bring it down to 50 for a more comfy ride.

Rider weight is 145#, bike weight is close to 30# with all the 'stuff';

How'd it go? Front flatted on the driveway. Stud went through on inside of carcass. The same thing happened last week with the rear. Maybe pressure is too high for that tire.