I sometimes read reviews from younger punters, who book an hour and write about "prolonged poundings" and also gleefully mention "time for round two" after they've popped. And fill the rest of the hour with more energetic pounding.
They seem to assume the SP is enjoying proceedings as much as they are. But if the SP has already seen punters that day and might have more booked, I can't help think they might prefer a more easy going OAP, who once he's popped, is done, and is out the door within 45 minutes.