Nate, thanks for the heads up. Their ZM35/1.4 price is quite good, even with tax. (~1700 USD) They're showing availability at the end of July... I guess they don't sell outside of Japan? Not that I can even navigate through their e-commerce site beyond basic product searches.
Jack, good to know about the sensor sticks. I agree, I prefer them over swabbing. I found the blue ones worked OK with Canon sensors, but left smudge marks on the M240 sensor, no matter how much I cleaned the gel with the cleaner fluid. For that camera I tend to very carefully use a sensor pen and a blower bulb.
Philippe - very nice of the motorcycle and enjoyed your images in the related post on the Dear Susan blog.