Post Blind or Wait for blinds when sitting down?

I am multitabling. So I AM playing a lot of hands.... So the statistical thing...is correct I believe. Unless somebody can prove me wrong.

I believe at 4 PTBB/100, it is only advantageous to post from 1-2 positions from button.

More PTBB/100 obviously means you can post blinds from further away from button.

[CORed]

The amount posted per hand is clearly the correct way to look at it. Another consideration is that by posting in the CO, you are posting with much better postflop position. I'm not sure how to quantify it, though.