Larry Smith wrote on Sun, Mar 21, 2004 11:04 PM UTC:
Another consideration would be the advantage in the exchange. No matter
the number of the various pieces, a game might have a significant
difference between the weakest and the strongest. This allows for the
potential of advantage in the game, even if the exchanges are equal.
Of course this value would be quite difficult to quantify and would vary
from one game to the next, being dependent upon field and goal.
