Where is the supposed neutral position or how do you get it in the neutral position??

Do you guys have them set that way? or what works for you?
Do you guys use the little numbers on the shoes ?

i got two new pairs of specialized road cycling shoes, and on one pair the guy at the shop was able to set them up in a pretty good what he called 'neutral position'
but on the other pair, which i got at a different store, the guy did not get them on right. my right foot felt like it was trying to pop of the pedal so i messed with it myself and now i feel like i got the cleat on an alright spot but i feel it could get it better .

DAMN CLEATS ARE GOING TO DRIVE ME CRAZY NOW