The stroke-value of a hand-release vid depends on the handmaiden's ambidexterity. Does she treat it like a chore or a chance to display stiff one-eye-to-hand coordination?
It's easy to differentiate good and bad handjobs. Ineffectual ones (a few falter here) are inevitable - girls stroking rigorously as if cock is an adversary.
It's those patient starlets who realize that it's an art form of means, not JUST an end (ejaculation). It's also a bonus when the girls (i.e., Naudia Nyce) decide to take a little nibble or outright suck the head, since we know they're not obligated. That, right there, separates the starlets from the sex-worker.
Pre-nom it for Best Oral Series.