"The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?"
I am 3g at home and many other places I spend a lot of time, some places weaker than home but I always have 3g data, even when other phones/other carriers can't get anything.
The last couple weeks I have spent a lot of time in the city (with strong 4g) and I have yet to lose 4g or trade off to 3g while there.
I'm going to have to give this a test next time I'm in the city with my case off and see what happens.