Last year I had a warranty claim on my V2 (ironically, ECU replacement which is being done worldwide now). They would only honor the warranty if I could prove I did the regular maintenance (which I did myself), and the proof required was just receipts for oil and filters. Apparently they put no stock in something just being written down. Of course, just because I purchased oil and filters doesn't mean I actually used it on that bike, but they didn't seem to care.
2014 V-Strom 1000 - Desert Khaki
2011 Burgman 400
2007 Honda Helix
2013 V-Strom 650 - sold