Yes. That was what he told me. I was lucky.
He also said that if a seat comes loose it is almost always in bank 2 which runs hotter.

Thanks for the input, will roll the dice again and fix the head and reassemble. Still doubting if I should give a refresh to the other head now the engine is out.

I kept track on water temps and oil temps on a regular basis always stable around 82-90deg (water) and 90-105degC (oil) independent on ambient temps and load.

Have a GT3 water pump, relocated low temp thermostat, 3rd radiator and a relocated temp sensor for the radiator fans which kick in also earlier. In city traffic water temperature does not go high.

Hartech says the same thing.

Maybe time to look for a nice 996TT