Carl,
What insert was used for this experiment? i would hope it would ae been a standard insert across the board. also a controlled environment with constant humidity, i wouldn't want G to be mislead now and allow small things to get into his head and possibly confuse him further.
Also, what size holes were drilled in the wheels and were these new tyres and wheels or used and if so how much use had they had and is there any mud on the wheel/tyre.
Also how much glue is used per wheel?
Oh and i forgot a bit
Did you get "x" amount of the same tyre/ wheel combo, and take an average, or are these one off weights?
I hope your answers clear up any questions G may have