I've been watching this thread evolve and my personal experience, based on my '06A is that there really is no point in modifying the bike with a PC3 or any other type of mapping device unless you are doing track work.
I've used my bike for day rides, for long trips, for hooliganing and more and while it took a couple of days for me to get used to what others call a 'twitchy throttle', I really have no issues (even on highly technical roads) and can keep up (and more often outride) my friends on their K1300Ss, Concours 14s and such when riding the twisties. Out of the box the C14 has less HP and torque in the lower ranges than does the FJR.
I'd personally prefer to (and did) put my money into cruise control, HID driving lights, GPS and other, to me more useful farkles.
With coming legislation prohibiting exhaust changes, going to aftermarket and unapproved cans will simply be an invitation to receive a ticket - besides, the vast majority of benefits realised by PC and exhaust changes are marginal (less than 10% - and then only at higher RPMs where you don;t spend most of your time) and in fact often reduce HP and torque, even if it may sound faster - certainly fuel economy suffers.
Your opinion may differ.