Congrats on the new Panasonic, I purchased the VT-60 65 a couple months back and it is awesome. I did have it professionally calibrated and what a difference. Before calibration I used the Cnet settings, for the calibrator I used D-Nice I recommend him highly he does do calibration tours and might come to you're area. Some contact info:
DeWayne
Video System Specialist
A/V Fidelity LLC
803.386.8002
support@av-fi.com