I prefer to capture in APT with camera bin 1x1
In Startools, the way I check resolution and sampling with the Bin module is select Bin , let it use default 50% then zoom in to 150% to 300% and see if my stars are “blocky” or still round. If “blocky” I use the slider at the bottom and increase to say 65% . Zoom in again to 150% to 300% and check stars again , if still a bit “blocky” , slide across to say 70% or until stars are remain round
Most of the time I usually Bin between 50% to 70% but it changes with each session and with each different rig.
Sometimes ( rare ) when conditions are really good I don’t Bin at all
In other words it’s not a standard procedure
If your not oversampled you can’t take advantage of software Binning
Startools uses a scalable binning algorithm, works beautifully
https://www.startools.org/modules/bin
Cheers
Martin