Hi Rich
I have tried the standard and race fuel PGMIIIs back to back on the dyno. On a stock engine but HRC loom, and Tyga bolt ons it makes +1.5bhp throughout the rev range. Now this might not seem much, but do 10 of these tweaks and you get a beautiful bike. The race PGM opens the p/v at a different rev range and advances the ignition a bit. Expect to pay £300-350 for one.
Every little helps.
Cheers
Dan