Daniel is the best tuner for Lotus cars in Germany and I'm very interested in your results and dyno measurements since I want to go the same way.
Daniel has two levels for the Exige-S: Phase 1 with 250 and Phase 2 with 280 bhp. What's curious though is the torque comparing Phase 1 with 2. Phase 1 is better up to 4500rpm where the xover point is. Beyond 4500rpm Phase 2 produces torque like hell. An addition there's a weak torque area around 3000rpm - wondering where this comes from.

The y-axis in the graph is torque in Nm.
Looking foward to your measurements
Regards,
Frank