I decided to rebuild my 6 inch 6S setup with a few updates. Apart from switching to a much stiffer 5mm bottom plate
I re-designed the canopy to fit a standart GoPro mount and and an SMA type antenna.
Main objective of the updates was to make the build more mid-range capable and have HD video while still being "race ready" after taking off the GoPro.
I get around 3.5 km of range out the video system. After that the quality goes down noticeably. Flight times over 6 minutes are no probem with a 1300mah 6S flown very carefully. I also tried using 2x1300mah 4S and it flies surprisingly good for some relaxed long range cruising.

The standard GoPro mount is just super convenient! I got really annoyed every time I had to pull my GoPro out of one of the usual TPU mounts to put it on another quad. Also being able to adjust the camera angle is a really cool feature. The downside is that the camera kind of sticks out in the front. But I suppose there are some solutions to that already on Thinigverse.

Since I got quite a lot of requestst, the frame is now available from Armattan Productions https://armattanproductions.com/pages/kit_detail/2206
The TPU parts are on Thingiverse: https://www.thingiverse.com/thing:3454780 You will need a 20x5mm screw and a Propnut to fix the cam.
Armattan usually takes a while to ship but their manufacturing quality is really great.