Regarding overfilling the transmission: I know some folks at Livernois suggested adding a pint over full. Steal, thanks for sharing info that you have heard that from others as well.
It is just that we have been informed by the owners manuals, dipstick markings and other sources that overfilling is bad...that it can cause foaming, which leads to poor shift quality, poorer lubrication and other issues. Hydraulic pumps do not like bubbles...and foam is full of bubbles. I doubt if a pint over is harmful. I have always been just a little gun shy on this. Obviously, Glock hasn't had issues in 24,000 miles and he overfilled his by a full quart!