Interested to hear so much praise for the PCIII addition. It will tend to overwrite the eprom. and the tuning is only ever as good as the tech who builds your map.
Having picked up a PCIII, I figure on using it too, despite the assertion from Elliot, who builds the maps for them, that it will overwrite his map. I will have two maps on the chip, switchable by way of the PIN/grn/bl wire at the ECU. Im fairly sure the PCIII can load more than one map, and becomes switchable with more dynojet accessories. I dont really care however, I have a small notebook that I can hook upto the bike. I reckon, build a PCIII map on the dyno to "complement" each of the two maps on the EPROM (a wet and full-power setup) then download the maps to my notebook. Anytime I switch, I can load the appropriate map....takes a few seconds. Jobs a good 'un. Not quite switchable on the fly but good enough for trackdays, my intended use. Eproms are great Im sure but what little I have learned from other bikes and factory fueling, there is no such thing as "one size fits all" - you decided me !
Mods are 57mm TB's, open/hooked type airbox, dual sided collector with gutted Tuono race cans, eprom to suit (boasting twin maps) and PCIII .:thumbup