I've been running the IRC Tandem tire on the rear wheel of my Surly Cross-Check for several years now. The oval shape with thick center tread seemed like it would wear and handle well, and it has.
After I wore the first Tandem down to nothing, I tried a pair of Panaracer T-Serv for Messenger tires. They seemed like a sportier option. I've had good results with Panaracer tires. But within the first week I hit some metal debris and gashed the sidewall of the rear tire. I booted it, but the gash was too long, and at such an angle that casing cords just kept giving way. I had to toss that tire. When I did, I couldn't resist going back to the Tandem.
The Tandem I have on there now must have at least 5,000 miles on it. I've racked up at least 3500 miles of commuting, two years in a row. Of that 7,000-mile total, I might have done a total of 1500-2,000 on the road bike or the fixed gear. Adding early and late miles outside the full-on commuting season, I think 5,000 is a conservative guess. And the tire isn't completely toasted yet.
Front tires seem to last forever. The surviving T-Serv is still rolling along. It will probably die of dry rot before it wears out. I should rotate it to the rear, but I don't want to run the Tandem on the front. The oval shape feels a tiny bit weird dropping into a corner. It's not too bad on the back, with 55% or more of the weight flattening it out, but I prefer a rounder shape on the front.
I guess I need to build another bike on which to wear down my retired fat front tires. 700X32 is too plump for my road bike, and I run 27-inch wheels on the fixed gear.
The IRC Tandem is a 700X30 that takes 100 psi for all you roadie types (like me) who have a mental block against riding with less than three-digit tire pressures.