I’m planning to build an F550, starting in a week or two. I’m going to be ordering the craft, plus Naza V2, H3-3D gimbal plus mounting bracket, DJI 2.4GHz BT Datalink (which I won’t be installing initially), 5.8 Video Downlink, IOSD Mini, Canhub, Landing skids, DJI DT7 tx and rx, Black Pearl monitor and receiver, Mount for attaching the monitor to the tx, Batteries and charger, Flytrex Core (Have I forgotten anything?) The GoPro can wait for a while. I’m a competent solderer, and perfectly happy with understanding tech manuals, etc. I’ve become a competent and confident pilot of a Phantom, never a single mishap. Just one thing really worries me - you spend well over a grand on all the kit, spend hours putting it all together, and checking everything 18 times, (I may well seek advice here when it comes to calibration!) and then comes the big day. How do you test it??? With any flying craft I think takeoff is the most anxious moment … will it ascend to 50 feet and come crashing down? Will it climb to 35000 feet, never to be seen again? Will it single-mindedly head off in the direction of Kazakhstan? Will it turn into a BBQ? How can you be confident? Grateful for any advice and views here please!