It's great to hear that the invitational went well, and definitely a shoutout to the organizing team this year!
I thought I'd provide a bit of my perspective, as one of the event supervisors and organizers. As you might guess from my username, I was the 'supervisor' for Fermi Questions and Dynamic Planet; I put supervisor in quotes because I was away most of the time due to conflicts (thanks to the rest of the team for making up for my absence). It seems I am quite notorious for my tests, which I tend take 'artistic freedom' in creating—perhaps a bit too much.
Fermi Questions
This test was rather long, with 60 questions and 500 points in total—the first half would probably have been a fine test on its own. When writing, I estimated my score to be around 50-60% (with a partner), and anything above 75% to be nigh impossible; in contrast I think we scored over 90% on the Nationals test back in 2013. Other than a few unreasonable questions, it was pretty standard, so the event was fine. There were a few references to video games (BotW and DotA 2), so I guess you can use this as an excuse to play video games? Scheduling-wise, we were following the Nationals schedule. We were pretty confused as to why there was a need to put Fermi during impound, but for scheduling consistency we followed suit. Also, Fermi may be useful for job interviews later on (if you go into quant trading or something similar).
Dynamic Planet
First, I'd like to apologize for not clarifying some the multiple choice penalty. I should have made a verbal announcement, though I was also not physically present so perhaps I should have done away with it entirely. It was very difficult to get points on the section, and given the 'high' value of points there I wanted to minimize guessing. The entire test, aside from the warm-up section, was difficult—I actually added the warm-up section last because I realized the rest of the test was more suited for a seasoned geologist than a high school student. Some questions were downright unreasonable (e.g. obscure isotope ratios), though most I think was doable given enough depth in the subject. I was a bit surprised at some questions (each of the random plates in the maps section was answered correctly by at least one team) and a bit disappointed at others (e.g. calculating distance to earthquake, calculating strike and dip). For the tiebreaker question, due note that I never indicated that said anime was good. I tried watching it for the memes, but didn't get very far. The intended answer was that both are called 'Eromanga,' which I thought was funny. Forgive me for the minor grading errors (usually 0.5 points)—made quite a few of them since we were pressed on time.
Also I'm glad that Astro, Remote, and Rocks went well - I didn't write them but was the 'editor' (seems like I do know what a reasonable test looks like).
but in all seriousness...)
). We lost 5-15 minutes total on the test from the setup lecture/being late, which goes to saying that directions could have been a bit more clear and the door could have not been locked.