How to determine "perfectly sharp" corners?

[garagebox]

I'm a newbie, preparing my first submission to PSA. I have many Topps basketball cards from the late 70's and early 80's in similar condition to the examples I'm sharing here. I could use some help understanding what PSA will determine as "perfectly sharp" corners. Below are some examples that appeared sharp to my naked eye, but magnified show imperfections. For each example I'm wondering if you think PSA would determine these to be "slightly frayed" or worse. Based *only* on the single corner in each example, what do you think the max card grading could be, assuming the rest of the card is perfect?
As a bonus question, I'm wondering how much you think I'd get dinged for the edges shown. Are these just rough cuts, or degradation?

Thanks in advance, this will really help me determine how best to select cards for grading.

Example 1: Green/Julius

Example 2: Red