Bobert,
Thanks for the interesting refresher on field dimensions. I have heard this parlance (seemingly) my entire life: The 6- yard box, the 12-yard spot, the 18-yard box, the D, the circle, touchline, etc.
Diminishing First Energy field dimensions is an extraordinarily bad idea. There is a very good reason Porter specified the size of the new field. He wants to recruit a certain type of player for a certain playing style. A narrow field necessitates a typical Big10 roster to play a direct style with lots of long ball and heading. Remember that Porter wants to change American soccer in order to compete better internationally.
Field dimensions really hurt Zips vs. Charlotte. A very narrow pitch enabled 49ers to easily clog the middle with larger, slower, less agile, more physical players. Zips could not play the ball into the Midfield. Can someone get the dimensions to TransAmerica? The touch looked really close to the box.