Question on how you verified this? Did you ever drop LTE? If so, you only saw 1x when not on LTE? Shutting down EVDO completely (many sites running one carrier) doesn't really give that much more room for LTE.
There is a small problem now with B41 protection sites now showing as normal LTE coverage though. This could also be misleading, making it look like there is full coverage where there is not (see Marquette discussion above).