Can you post the size comparison for EG last 64, there seem to be a lot of confusion regarding the instep. I was lead to beleive that 64 last is wider so it could accommodate thicker socks but some folks are concerned about the instep of last 64.
I don't own a pair of 64, I have only tried them on for fitting. IMO it fits like the 202. I did not think of it as either higher or lower across the instep to be honest.