I used to have a 996R, and found if set up propertly with the race ECU that comes with the bike and the open pipes on it fuels beautifuly, no flat spots, no fluffy bits and no hesitation.
Try putting the standard ECU in and you'll notice a huge difference, big flat spot around 5-6k and general fluffyness.
I'd be very suprised if a PC offered anything over the race ECU. Top bike, wish I'd never sold mine.......... (violins out please!), in fact it's now my ambition in life to get another!
[Edited on 21-1-2005 by MaccLad]
[Edited on 21-1-2005 by MaccLad]