Andy, don't ask me ask Navarac.
Your making my point exactly, the number of hours worked each week does not equate to competence, or how well you arrange to get the job done, and with today's technology it would have been even easier.
When I was part time I never had a listing expire and the full time agents kept telling me your listing them to low. My broker told me to forget them, and use hindsight, and the closed sales, to see how well I did for my sellers. Well I did, and found I was getting prices in the top half of the solds, so I didn't change a thing at that time.