So, on to soldering the ESCs to the PDB and attaching the motors to the frame. This is a small frame so I had to cut the ESC wires down pretty far...
...and then solder them onto the pads on the PDB.
P.S. don't look too closely at the soldering here - I had a bit of an issue with the nib of my soldering iron and was therefore working with an insufficient tool (what's that saying about a bad workman again...?).
I then secured the motors to the frame along with the motor protection mounts provided in the Nighthawk X5 kit.
So, in the course of building this kit, I did, unfortunately, neglect this build log. I am pleased to say that I have now completed the build and the guide and so you can peruse this if you so wish. We are now selling the complete kit for this build under the title Nigthhawk X5 DIY RPV Racing Quadcopter Kit (bit of a mouthful I know but it gets the job done).
Nice build. It does get a bit tricky with all the soldering of the wires to and from the PDB to the flight controller but with a good soldering iron (and some patience) this design does end up with a neat build.
Performance-wise - I am not the best pilot and so perhaps not the best judge but it does fly like a beast. You do need to fiddle with the PID tuning to get it flying perfectly but after you have done so, you can sit back and relax.... well, maybe not relax as you need to keep your wits about you!