Okay, as someone who has tried with all their might to break the Fishing downtime in their game of DS, this would be the perfect way to make my GM lose their mind.
Jokes aside, this supplement is super intricate and complex, and admittedly that might be a turn-off for some players, but at the same time everything checks out and has been clearly well thought out. For me and the other sickos who love ragebaitingly difficult fishing minigames, this feels like something we'd enjoy taking a while to plot out and pick apart. Good job!