If you have a chance, what's the pulse rise time look like with the various ERES? This should give a good indicator of BW with ERES modes.
Kinda tricky as we only have Hi-Res.
After many many tries with all modes of which there would be too many screenshots to post the best/fastest risetimes were measured with these settings:
ESR = ON
Peak Detect or Normal acquisition
Mem Management = Auto
The addition of Hi-Res limits channel mem depth to 12.5 Mpts.
Hi-Res 4 bits pushes out risetimes to 1.3 ns from ~245ps
Examination of risetime screenshots in above posts displays the settings that provide the cleanest races with least digitization noise are in Fixed Mem mode such as the one below although the measured risetimes are just a couple of ps longer than in Auto Mem mode.
Still getting used to this scope and already I have a preference to use it in Fixed Mem mode, not for the new feature that will become evident in time
but for the nice fine traces it displays.