[nuguy]

has anyone even thought about... for a radio to work efficiently, the antena needs to be properly tuned.

perhaps someone who has a external antena available, and has the bat log software installed could start logging, attatch the external antena, and try a data call, and a voice call.

If there is a significant difference in that config, that would at least give a direction to attack...

I'm on vzw w/ a 6800 so I can't help, yet perhaps I just did...