Why 87 specifically? Do you mind elaborating a little bit on that? Would love to hear reasoning, the more specific the better
Heh, wouldn't we just love judges to elaborate more on that? Is there any real *reasoning* in subjective scoring? When the ISU just has "8-8.75" as "very good," what does that mean? Your "very good" and my "very good" are probably very different.
To try to answer your question though, for the FS, I would just give the composition an 8.25 (maaaybe 8.50), his presentation 9.00, and his skating skills 8.50. I guess that averages to 8.58-8.67, so he might lose an additional 0.3-1.2 points from my original 87. But I don't know, he went last, he's the world champ, he's skating at home and he did pretty well and the crowd went wild, so if I were a judge in the TD Garden, I probably would find some emotional reason to give an extra 1 point somewhere too (not saying that's right, but judges are human).
I think this was kind of interesting though from the ISU, when it talked about originality and its role in PCS: "If the skaters believe in what they do, if they are involved in the music and the program, they will be unique; they will be able to give life to the composition in a personal way – in their own way." That is probably what gives Ilia a little bit more PCS, even in composition.
Do I think skaters like Junhwan are significantly underscored in PCS though? Yeah, definitely. I think the problem is that other skaters should be getting more PCS than they do, whereas Ilia should be getting less, but I don't think his marks are too far off either. This is just my opinion, and I know many others disagree.