Yeah I did think about disconnecting the waste gate actuator so that it won't build any boost. 1 little clip and it's off and open (internally gated).

I got the car started today and it fired up straight away after priming the fuel a couple of times. Idle was at 8-900 and slightly erratic for about 2 mins then settled down. Given I don't have a FITV anymore I think that's fine. Warmed it up to operating temp and everything was smooth.

Booked in for the tune on Friday, surprised I managed to get it booked in so soon!