Simple Extrusion Test Part

This is a simple extrusion test I mostly use to dial in my extrusion multiplier.
Instructions:
- Print WITH supports! (WHY? So that first layer inconsistencies don't ruin the results)
- 100% rectilinear infill
- 1 perimeter
I usually print them in 5% intervalls.
After printing judge the top-layer:
- gaps: flow too low
- nice and flat surface: flow good
- rough surface where the nozzle plowed though: flow too high