I think right now, Bonanza is playing as badly as I have ever seen it. It went through a horror patch this time last year. It’s amazingly well programmed though. All the different stages it goes through.
Remember the times when triggering the bonus first spin was fairly common. The D dropping, despite only having one space. Back to back bonuses were seen quite often. Certain people would regularly hit 2 +5’s or sometimes up to 5 (still a thing of beauty).
Now it’s extremely rare to see any of those. It also goes through spells of paying big base hits and then they disappear for an age. Still the best slot ever. (Most of the time).