I took a look at my records for the month of November and after review realized that over the course of twenty encounters I had enjoyed 29 pops.
I want to make it clear that I'm only sharing this for illustrative effect, not to brag. My harem is not pro-level by any means but it's possible to put together those kinds of numbers even as a beginner if you hit it hard and accept 6s and 5s. I am currently running a group of one 7, two 6s, and a girl with a 7 body and a 5 face (lowest factor determines overall score).
There will come a time when you are unable to rouse much interest in your partners. It's an interesting turn to be unable to get it up for a woman who no longer cuts it, a woman who only a few brief months ago was able to inspire nail-driving hardness and longing from you. Even women who objectively should be attractive can lose their sparkle.
To me this seems to be a sign that it is time to start Sarging again, going after higher-quality ladies, and demanding more of my lovers.
This of course is matter of fact for the more experienced lotharios who will doubtless emerge to remind me of my inexperience, but for a person entering into the world of spinning plates and nampa, tales of passing this bar would be helpful.