In my experience, since that's all I can speak to, I was getting Primes every ~20 Caldera runs with B/B+ grades. After seeing this, I made sure to get A grade every time and my average dropped to ~12 runs per Prime. That's my data, what's yours? Or are you just listening to the streamer clowns that keep making up new "facts" daily so they can get you to click on their new videos? EDIT: Yes, you can even get them with C grades. In my experience though, you're looking at less than a 5% drop rate at that point, so go ahead, do what you "need" to do and run two/three times as many runs to get your drops then complain they don't drop enough (this is a general statement, not directed at you specifically jhermann)

How do you even score so low to get a B on caldera....