Dave,

A PC3 is definite overkill mate, I'm with TP on this, I have the FIM/Sigma single chip and the bike now runs a dream (Y2K 996) and used to suffer like yours. Also you don't need dyno time to set it up, it's done with a hand held reader that the suppliers have ...... Nelly can supply & fit and has tweaked mine in the past and Sigma can supply and fit also as thats where mines from.

Good luck ...