Recommended · for some experience
#68: Oscilloscope Probe Ground lead length effects on signal quality
Why people recommend it
A practical demonstration of how the length of a scope probe's ground connection distorts fast edges, cited whenever ringing or probe grounding questions arise.
Watch for: Matters for anything above a few megahertz
In their words
This video well show when and when not use one or another probing method.
Biduleohm on electronics.stackexchange.com, Oct 2014. CC BY-SA.