I've been reasonably pleased with 6x and 2M resolution..
For the distant stuff, I like to include some of the background when it's interesting for the composition.
And many times I can fly close enough that even cropping out the background doesn't harm the composition..
From the Tailwinds Spring Pattern Event yesterday..
Scale Fly-in at the Channel Islands Condors.
Ninja at Vincent Summit
And a very happy Eindecker pilot..
All at 6x.