I have passed several e-mails back an forth with the WDW folks trying to get this question answered, but I keep getting the run around.
Anyway, what I am tring to find out is if the "sticks" they use to verify the height restrictions are exactly the height indicated, or if they add 1/4" or 1/2" to account for shoes. i.e. the height restriction for Test Track is 40". Does that mean that the top of my son's head needs to be 40" from the ground (reguardless if he is wearing shoes, sandels, etc), or is the bar actually 40 1/2" assuming that everyone will be wearing shoes that have a 1/2" sole on them.
This is an important question form me since one of my sons is approaching 40" and we want to make sure he will be able to ride all the 40" rides when we go back.
Thanks.
Anyway, what I am tring to find out is if the "sticks" they use to verify the height restrictions are exactly the height indicated, or if they add 1/4" or 1/2" to account for shoes. i.e. the height restriction for Test Track is 40". Does that mean that the top of my son's head needs to be 40" from the ground (reguardless if he is wearing shoes, sandels, etc), or is the bar actually 40 1/2" assuming that everyone will be wearing shoes that have a 1/2" sole on them.
This is an important question form me since one of my sons is approaching 40" and we want to make sure he will be able to ride all the 40" rides when we go back.
Thanks.

Oh well, next time!
he said that to him and gave him a piece of my mind as well (to not let us on is fine, but don't accuse us of lying and then humiliate my 4 yo son)! 
. Then, they don't take time to remeasure. Also, be sure you are not holding your child. My SIL and BIL went with us one year. Their little boy probably would not have been measured for TT if he would have walked. However, he was in a whiny/mad mood, and his daddy was carrying him. My DH tried to tell him that if he wanted to ride, he better get down, but neither my nephew nor my BIL would listen.
. When we got to the measuring point, they made him get down, measured him, and he just missed the mark (although, I don't think he stood up tall-tall).