I think all fastismycopilot was getting at is the proportional increase in power that he has gained - not the overall figures. I think that his proportional increases are optimistic, but still maybe achievable and maybe we should give his car the benefit of the doubt (obviously apart from the DV increase, which we all agree is unusal)! He can only go by what the RR has shown him, and that's exactly what he's done.
Different cars react to modifications in different ways. Take mine and Robin's cars for example...very similar modifications and remap settings, and we've seen a 8hp difference between the two. No two cars are the same. Maybe fastismycopilot got a great car, and his is putting out more than standard - lucky him!!! Mine plotted 201.2 as standard, I'd have been mighty happy if it had got 208-210!