I ran the unleashed 93 Octane 3Bar base tune this winter... and Torrie is correct. During the winter I did have some good lean spikes and the stft were adding quite a bit of fuel to compensate for the denser air. I ended up asking him for milder tune for the winter.. I did have the throttle close up with the base 3Bar tune from him during the winter under load...
I will caveat that with I did end up replacing my LPFP this spring, so I am sure that didn't help things. Although I never did get a DTC...
