X-Foot 195 A true X-Frame
The 7mm thick bottom plate with 5mm wide arms is strong. By using a 4in1 esc together with a BEC you don’t need a PDB, saving even more weight!
X-FOOT 2207 2600KV
They are special CNC cut out magnet slots inside the bell, so the magnets will never ever come out, they are made of the strongest materials making them heavier but with 1600g+ of thrust no worries about the extra weight. For the moment they go far beyond my skills.
Check out MiniQuadTestBench: http://www.miniquadtestbench.com/xfoot-2207-2600kv.html
As for the RF1 Lumenier Skitzo, there's not much to say, except that it works great for me. This build is fast to do, had to mount the VTX and RX on the backside to keep the Skitzo free of any stacked stuff.
The weight without battery is now 324gr.
Photos
That's pretty much the same setup as the owner of Xfoot runs. I'm not sure what esc he uses but the rest is the same. Really nice build. This is without a doubt one of the fastest quads on here.