Just wanted to post about my good experience with Texarkana Regional Airport this morning. I'll by flying my P3P at Four States Fair Ground over the next few days, which is less than a mile from the airport as the crow flies. I spoke to one of the guys in the tower and he took my number and called me back a few minutes later after some checking. He said as long as I stayed under 200' agl I'd be fine. They were super nice and very helpful. I know this doesn't make for scintillating reading like problems or drama, but I've always been a big proponent of asking permission before asking forgiveness (possibly from a jail cell). And even though there are generally accepted guidelines on flying closer to airports, every airport, town, and police dept is different.