Quad arrived and assembled the antenna. I chose to add an additional LHCP antenna as I normally fly LHCP to reduce clashing with other pilots. Inspected setup in betaflight. Tune all looked custom and BF4.2.x No RPM filtering. Initial test flight was great, very smooth, easy and predictable to pilot in acro mode. Could not get GPS fix though. I have since rerouted the tarsier camera ribbon under the stack and added some Cat5E external grade shielding to the gps wire (makes it less flexible), I was then able to get a GPS fix with included gps module but it took a long time. I had a spare Bantian 220 module which I now get a 8 sat lock in under 1 minute. I have printed a suitable batery mount holder for it. really enjoy how small and quiet this quad is, its superb for cruising. Have made a 3 cell and 4 cell 18650 packs and get 30mins+ on the 3 cell, and less on the 4 cell but a little more juicy in flight performance. With lighter weight 500mah to 850mah packs the freestlye performance is lacking, but is capable. I use it for mild freestyle cruising and thoroughly enjoy flying this quad. Since mounted a Tramp micro to replace the panda vtx. The panda vtx was fine on my build and flew for several hours and furthest I dared was 1.5Km Video and tbs signal still great. Put the tramp micro on as looking for a trusted slightly higher power vtx- which slots right into the same wire config as was provided for the panda (5v, gnd, video out, telem-smart audio).