I decided to play solid for a few games, and more importantly with increment, to get back my FICS rating back up to a more realistic level.
I haven’t studied tactics in over a month, but I solved the first problem in this video in around 4 minutes.
I only looked at the first and last problem in this video, and the last one was easy for me but it took this Master a long time, not sure he solved either one. He is a much better player than I, from having watched his videos, but this did let me know my tactics aren’t so weak, I guess, and probably the same goes for Blunderprone. The tactics study does work. The main difference is between having a strong sense of “Oh yeah, there must be a winning tactic in this position!” and not having that sense. But it’s also just as much pattern-recognition from having seen so many similar ones before.