ok first of all, its 'Height'.
dont worry, the english language is stupid, so its no biggy :)
Secondaly, i do have to admit, i always found it very strange in this game, that you could have a 6'3 guy vs a 7'1 guy, and there is no factor that takes into account the physical attributes of the player.
I personally feel that it shouldn't just be height. but also weight and perhaps 'athleticism' as well.
but unfortunatealy, these things are too 'drastic' changs to the stats, training model etc... so its probably best just to leave it be.