Hello everybody, I'm considering sending out my SX-850 to get the tuner aligned and checked out. There is also a slight hum in the tone circuit. There seems to be a few AKers out there who can do the work, some specialize in one aspect or the other, so I'm not sure who would be best qualified to check everything out. Over the next few days, I would like anybody who is willing to PM me and let me know of your experiences dealing with those people. Thanks for anybody willing to give me some advice.