So, finally kicked off the big upgrade this past Monday.  A few pics from end of week 1...after my nerves calmed a bit. Seriously, these guys are the best.  Very happy with the first week's progress.  Antennas from left...GA37 (GTN750 and GDL69), GA36 (future GTN650), and NGT-9000 Lynx WAAS antenna.  Also added the Skywatch antenna to use the "+" feature of the Lynx's TAS/TCAS feature.  More after end of week 2 next Friday.