What is your idealized version of a perfect score on a component. It is not really even towards you, I was actually just wondering if they have official textbook animations somewhere (not real skaters) that they demo the desired execution of each graded element to use as a benchmark. Most people seem to use real skaters as examples instead. Is that what you use instead when grading by comparing to someone or is there other way you (or the judges) envision the perfectly executed stuff?
AFAIK there isn't official information posted anywhere for components. But then, I was never an actual judge myself, so maybe they might have access to something private.
As for my own methods on grading PCS, I generally don't like using certain skaters as benchmarks; this kind of comparison is difficult because skaters have different styles from each other and use different music. Instead, I first study the PCS judging criteria, then look at the music being played for each individual performance, and think about the best possible way the skater can present the music according to their own style to match the criteria for each PCS category (basically this is a 10). This is mainly for PE, CO, and IN, as SS and TR look more at the skater's basic abilities making them more difficult to analyze. For those two, I pay attention to what the skater has displayed on that particular day for that particular program, and compare it with what the criteria asks for. Admittedly I'm not too great at analyzing SS on my own just yet, so that's the category out of the five that I find myself looking at the criteria the most for. While I agree that the system is flawed because of how subjective and open it is, it's unfortunately the system the judges have to follow for now anyways. So to minimize the natural bias while judging as much as possible, I never refer to the PCS marks I gave for a previous performance, which is why I get surprised when I see coincidences in the scoring like for Sasha Trusova's PCS.
I actually have never given a 10 to anybody as of yet, though I'm now considering doing some men's events so that may change. Some of the ones who I remember came very close (9.50-9.75) are as follows:
Yuna Kim's Danse Macabre (PE)
Carolina Kostner's Ave Maria (SS/IN)
Mao Asada's Nocturne No. 2 (CO/IN)
Akiko Suzuki's O (CO/IN)
Alena Kostornaia's The Leftovers (TR)