Scharbag wrote I just used cheap USB-C to USB adapters, a VMware Windows 7 VM and the supplied cable with my 2017 MBP. Works fine for me on Big Sur (and all previous versions).
Unfortunately, I had to abandon the Alpine tune due to recurring pre-detonation issues. Sucks but such is life.
Cheers,
Originally when we went hunting for the problem I was suggested by someone it was vanos. I reverted the vanos changes to stock and went on a wild goose chase.
With the thread on the lower end bogging coupled with your thread on pre detonation the problem was resolved with test group 16 some confirming 100% or 99% gone. This was last month.
Give a new map a try, worst case you flash back to your other configuration.
The problem was the vanos struggling on the bottom end, it wasn't pre detonation and that was the reason I was not able to pin point it. Once the bogging thread came into light the problem was pin pointed and figured out.