what difference on POI would a 17gr difference in arrow weight make?

so I finally got around to doing something I should have done sooner, setting up a spreadsheet on arrow weights.

turns out I have about a 17gr difference in wt between two brands of arrows I using. Is this enough of a difference to be concerned with? (I'm still a noob at this stuff)

thanks in advance!

 

You'll likely never see anything measurable if weight is the only difference.

 

Thank you! That's what I suspected, but wanted to be sure.