how exactly does height influence vision? is vision capped now with height??? or does it just provide an extra bonus?

viktor wrote: The effective Qb vision is dependent on the Qb height in relation to the height of the players around him.

So, does that mean that if the offensive line is about the same height as the QB (provided that you've got really good OLs), that his vision will be ok?
And what do you all say, what is the ideal height for QB? Judging by everything I've read so far, Yao Ming's height would be perfect... Surely, tall players must have some limitations in this game, for example poor footwork (in Yao Ming's case).
i don't know, i think i will at least use my 5'11" player as backup. For crying out loud, he's as tall as Drew Brees!