Me too
Obviously most of the Lynx ones have been on Chip Wizards dyno, although we've also had some dyno'd independantly.
Results have ranged from 244 to 261 BHP I think, on a range of rolling roads.
If it doesn't make the power you want, you can always get the Dremel out and attack the restrictor ring
Obviously, at completely your own risk
Exhaust system is the biggest driver for the output power from our experience.
Would there be such a big difference when using the generic map than a custom one?
If so it may be time to sell a kidney!