Apply Paint with Dollar Store Brush

What happens here

The presenter begins applying the dark latex paint to the ceiling line using the dollar store brush. Immediately, issues become apparent: the brush feels 'pretty stiff' and is 'not what I would want for this paint.' The stiffness makes it hard to maneuver and get into corners effectively. Furthermore, the brush does not hold a sufficient amount of paint, forcing the painter to re-dip frequently and preventing the creation of long, continuous lines. This severely limits efficiency and contributes to an uneven application.

Goal: The presenter attempts to cut in a ceiling line using the dollar store paintbrush, immediately encountering difficulties due to the brush's stiffness and poor paint retention.