any one has experience with Power Commander 5?

[BikerBoy]

This flashing thing is fascinating

Yep!!!! Our ecu's are just another part manufactured by either Denso or Mitsubishi and loaded up by Suzuki with the data to run our bikes. And just because Suzuki don't make it an available feature, it doesn't mean it isn't already built into the ecu.

Have a good look and read through the Woolich Racing site and forum, as well as the ecu-hacking forum. It's well worth the $350 to get the interface even to just have a look and make the basic changes yourself. Keep in mind though that you can really screw things up when you start to get your hands dirty and don't really know what you're doing.

if i really do stuff up, can i reverse everything back to stock?

You save .bin files (which are the maps files) and you always retain a base map (stock) as something to always fall back on and load back in for stock settings.