I do have one marathon plus. It was bought in desperation in Germany, after another of the 368's broke (snapped bead). I thought it was a bit slow and noisy, and heavy. It has had one puncture so far, but this was a thorn through the sidewall, here in Australia.

Most of my riding is on a faired recumbent. For me rolling resistance is comparitively more important, due to our low aerodynamic drag coefficients and small frontal cross sections. I average about 30km/h around town.

Looking at the Continental website, I notice there is no longer a "tour contact", it became the "travel contact" which looks the same but does not come in 406mm (20 inch). Ditto for the Schwalbe Supreme (and XR and specialised armadillo). So for now I am stuck with the regular Continental "contact" vs marathon plus. I'll give this regular "contact" a try.

Olly