The 9 pointers that I see down in SE Pennsylvania have mostly had the G-4 on the right side. But, upstate, I have seen a few with the G-4 on the left.

I'm sure it's just like left-handed, right handed. Blonde or brunette. No rhyme or reason. Depends on the genetics of that deer.

Here's an idea. do a Google search for 9 point buck. Choose images. See if there is a pattern in all the pictures or if it's totally random. I'm sure you'll get to see about 100 pictures of 9 pointers.