Okay so about the beams and about Pink Steven, here is the evidence/explanation (sorry, a bit long as I tend to do, but I'm just being VERY THOUROUGH to explain the scenes to you, Ant):
When Wite, Yellow, and Blue Diamond worked together to launch the "corruption beam" at Earth, it was mostly to carry hax along with it, the "corruption" hax. HOWEVER, the beam had a level of brightness above that of the sun, and had the physical effect of blowing away all the clouds it hit; We calced that beam and the light-energy was only something like 6-A to low-end High 6-A, however, that is because it was a **very casual** feat for the Diamonds, and they weren't aiming to put destructive power in the beam, but rather just to use its hax.
Now about when White tried to use her beams on Pink Steven: Pink Steven's dura, first of all, actually comes from his shields. However, Pink Steven's shields were shown every time in the scene to be **automatic**, they activate basically whenever anything is sent at him with no need for focus or effort on his part, so this is why we are considering the shields his durability, as they very much are just something that happens on instinct. HOWEVER, if you don't agree with such an assessment, then we could perhaps give his durability the tiering "At Least High 6-A, likely higher, likely FAR higher with shields." Does that sound better??? We can be sure at least that even without the shields his dura is Likely Higher, because his AP was able to stagger all the other Diamonds in that state with his "screams."
Now about how we know why White D was going truly all-out with the last Beam: At the time, she had several other characters, including Blue and Yellow, mind-controlled with hax. She tried shooting her beams (which again are carriers for hax but also carry light-enegy), by herself, at Pink Steven twice, using more power each time, only for him to CASUALLY block them with shields. So on her last attempt, she got PISSED, like, TRULY pissed. She said " Aghh! Don't you raise your shield at me!" Her eyes, along with those of all the Gems under her control **including Blue and Yellow Diamond**, all started glowing White, and White screamed in fury "I only want you to be YOURSELF! If you can't do that, I'LL do it FOR YOU!!!!" Then, with visible all-out effort, she and **all the other Gems under her control including the other two Diamonds**, launched a MUCH more powerful set of beams at Pink Steven, who proceeded to casually deflect them, then **burst his shield** causing a shockwave that knoced everyone back to such an extent that all the other Gems were staggered and briefly incapacitated, INCLUDING WHITE who was briefly incapped to the point of **actually being knocked out**!!! Human-Steven, who was across the room, started crying and said "No, stop, you're hurting them!" White Diamond didn't even regain consciousness until Pink Steven and Human Steven re-merged.
So at least with his shields, he is DEFINITELY "likely FAR higher" in both AP and Durability as even going truly all-out, White Diamond while simultaneously channeling the power of Yellow and Blue couldn't do diddley-squat to Pink Steven, and when he burst his shield, it literally knocked her unconscious!
Soooo based on that Ant, what do you think we should do with his tiering? I propose we just upgrade Pink Steven's AP to "Likely Higher, Likely Far Higher with screams and shields," and put his durability as "Likely Higher, Likely Far Higher with shields." Does that sound reasonable????