Square and Triangle balls

I'm wondering the same thing. My assumption is that the triangle is the pro v1x and the the square is the pro v1. I currently use the 1x and the triangle seemed to play exactly the same with maybe a touch more green side spin?

I just finished my testing of the square and triangle balls and found that they both had about the same amount of spin. I loved how soft they felt and the stopping motion on the greens. Would like to know what each ball was.

Would like to know what the triangle and square labeled balls are.