Small update:
Went back to the Dyno last week with a new tune.
I am now using MHD+ Multi Map, as having just one full send map isn't that useful, especially this time of the year.
Map 1: 16psi made 427whp and 577nm (This map is all I need on the street).
Map 2: 21psi made 476whp and 663nm
Map 3: 26psi Made 565whp and 863nm.
You can however see quite a nasty dip up top especially on the high power map. (that map was actually 560whp and 808nm).
This is likely a vanos tuning issue, my tuner has sent another revision, but also a result of timing corrections.
I flash my old tune, which is the grey line on the dyno sheet, however the power still dropped off and has a dangerous amount of torque down low (Bendy Rod zone).
The car pulled a bit of timing up top which robbed power, the ramp rate on the dyno was 2x more than doing a 4th gear street pull and the load was set to heavy on the Dynapack.
The timing corrections are a lot better on the street.