I am using a DVDO iScan Duo with a 2011 65" Panny VT30. Everything works great.
Interesting. The VT30 already has more calibration adjustments over the ST and GT....so do you find you can get an even better picture with the Duo over the VT30 alone? I guess you'd need to get really calibrating to see that.
I had the set broken in and calibrated by Value Electronics before I got it. Picture is outstanding. In addition to it's switching capabilities, the Duo does a good job improving standard definition D* and cable programs. Not sure the Duo does anything for HD broadcasts.