Here are some interesting facts:
- The two fastest WR still holding are Futari BL Maniac Reco by Clover-TAC and Pink Sweets Lace by YOS. K. Both took 7 months from the release date.
- The fastest 2-loop WR is the Muchi Muchi Pork! Pink 2-ALL just 8 month after the game came out. Outside of Yagawa-ish stuff chrono's DFK 1.5 Ura A-Strong WR took 18 months.
- As for the WR which took the longest, SOF-WTN and JMB current DonPachi WR, with Type A and Type C respectively, appeared on the Arcadia magazine only a whooping SIXTEEN years after the game release. H.S. posted a score pretty close to JMB's one though, and only 2 years after DonPachi was released. Maybe WTN and JMB took a really long time to submit their scores, but achieved them much earlier

- Overall, Ketsui and Progear appear to be the hardest games by CAVE. All the current Ketsui WR took at least 7 years to be reached, with the Type B Omote WR taking 10. The Progear WR by R. required almost 11 years of practice. Ibara and Espgaluda II take the cake for the most complex single loop game, with scores still being updated 6/7 years after they were released.
- Six years is also apparently what it took for Clover-TAC and WSM-MKZ to get the current Esp Ra.De WR. That one really surprised me.

- In less then 1 year, Guwange had already been counter stopped by Yusemi-SWY with Shishin. The other counterstop would not be achieved until 5 years later.
- Futari BL Maniac mode appears to have much less depth than the other two modes. The WR scores haven't been updated since 1 year and a half after the game release, while the competition for the other categories continues to this day.
- No Battle Garegga WR is older than 2011. If you're aiming for a WR in that game, prepare to practice at least 15 years! All the others Yagawa games also have really recent scores, testifying the very high complexity of the genre.
- Many Psikyo games still have active competition. Apparently they are pretty though to optimize, even though they often have very straightforward scoring mechanics.
- The average time to get a WR in a CAVE game appears to be roughly three and a half years. I'd estimate that even the best players take about 4-6 months before they start submitting WR class scores.
I was quite surprised to find just how long it takes to get a really good score. Even a very simple game like Mushi Original took more than an year and a half to be optimized. I think the longest time I have spent practicing the same shmup regularly is ~20 days.
