Recommended · for some experience
How fast can your hotend print?
Why people recommend it
Measures how much filament a hotend can melt before under-extrusion sets in as print speed rises; cited when people tune printers for high speed.
In their words
The video "How fast can your hotend print?" presents experiment on this phenomena and its outcomes.
octopus8 on 3dprinting.stackexchange.com, Jan 2021. CC BY-SA.