Been a few threads on this, and I'm no expert but I did exactly what you mentioned to check mine. Rotating the tire, the chain does wander on the sprocket; it's not pulled to one side. I guess the real question is "what are you really after"? If it's reduced chain wear, maybe a chain alignment tool from MP or some other vendor is the best solution. If it's to be aligned with the front tire, then the string method might be best. My problem with any measurement is this - there are enough differences in the bike that you have to hope you picked the one point (and has to work for both sides) that Kawi hit right on the nose. Seems to me it would be easiest to maintain quality control on one small part - like the alignment block - rather than hoping everything in the jig for welding the frame was spot on. I have more time on KLRs than the Versys, but I know there are big differences on those bikes with things like subframe alignment, etc. from one bike to another. But I'm still open to suggestions!