Upper Ball Joint Grease Boot (fit???)

Is that rust putting on the taper of the ball joint?

I have never seen a seal like that.

Doesn't mean it won't work correctly.
It isn't rust on the taper, but there is an inconsistent finish that looks spotty - still feels smooth to the touch.

Here's another pic with the ball joint shaft at the extreme range of motion... I realize that with pressure on the boot it won't slip off as easily as it has here, but it still doesn't give me a lot of confidence that there isn't enough room for play without pulling the whole boot out of position.

I talked to PST again and they insisted that it's fine... without seeing pictures of it. So I guess if I need a better fitting boot, I'm going to have to find one somewhere else.
PXL_20220228_203611197.jpg