The last vinduro I rode was a couple of years ago and my mind set for the day was sought of a competitive nature in that I was going to just ride as much as I possibly could for the entire alotted time. I didn't kick anyone off, swear at anyone or behave badly, just rode around those a bit slower or anyone stuck on a hill, didn't stop to help (not that anyone needed help), talk or wank, only to re-fuel and have a drink. I even had to replace an errant swing arm nut which had become conspicuous by it's absence! The end result was I had an absolute ball and took out the "prize" for most laps ridden for the day, and I'm just a fat, old bald prick! I must say I really enjoyed the the track though, technical enough without being outrageous, but rideable for almost anyone. The bike, 1980 Husqvarna WR390 was also a gem, so maybe the planets just aligned for me on that day. That's how a non competitive vinduro became my own little personal competition. I would probably enter a competitve vinduro though, I reckon it would be a bit more of a fun challenge.
Cheers,
K