First off, I don't even have a fuel injected bike. However I hear a lot about people sharing PC fuel maps via the internet, and people tell me they got a "custom" map on their bike. I've always laughed my arse off when someone tells me their "custom" map is from some guy they know on the internet in Arizona, etc. First, the word custom implies that its an original creation dedicated to your specific bike. Second, (I'm asking) isn't there enough differences between bikes of the same make and model that they would have slightly different fuel requirements? Finally, the atmospheric conditions are going to be completely different across the states, so maps from people at sea level and the top of a mountain are going to be different. With all the random garbage on the web and the fact that computer viruses exist, what makes everyone so confident that someone isn't going to sabotage them? My thought for the day, anyone else? edit: this is aimed primarily at those people that download maps and blindly run them because they don't have equipment (WBO2) to test the map