The problem with the DP chip is that its preprogrammed with a fuel map that "should" work, only problem is it is a general map, and you can't alter it, so if you get a flat spot somewhere (and most do!) you're pretty much screwed.
Power commander lets you adjust the map to suit your bike, so you can have a map for best economy, best power, riding in the wet etc. Not to mention the looks you get when you plug a laptop pc into your duke and start messing about!
But the best thing is the knight rider style leds moving up and down when you switch the ignition on
They move up and down when you blip the throttle and the engines running too, trick or what!
Its pretty simple to install, the only thing that takes time is working out the neatest way of routing the cables (anal i know), it uses stock style connectors and you dont have to cut any wires etc
[Edited on 22-6-2003 by DJTera]