I've been on an evolutionary path... Starting with strip clubs, transitioning for a while to Nuru stuff, it's been about 4 years since I'm into SPs.
At the beginning I was not keeping track, until, a few months into it, I booked by mistake a repeat with whom I had had a previous not-so-great experience. My fault, of course, not hers - but it made me learn my lesson in keeping minimum stats, such and handle and overall rating of the experience.
Not counting the repeats, it's been 60 girls over 4 years.
Lots of "9"s and "10"s, but also a couple of "2"s.