I use apm and minim osd in all my planes, I've done a lot of experimenting with it. Here are some very useful things I found out, and some flight footage examples. How to remove flicker and contributing factors to unstable video plus how i fixed it. Simplified wiring diagram at the end.
Git hub link: https://github.com/night-ghost/minimosd-extra (you only need the released folder) Be warned it requires clean and stable 5.2 volts!
Check out the clean power system build here: https://youtu.be/QYD09TYy_Ko
MTD Plane Overview: https://youtu.be/L9sN1KBLvPQ
Get you minim osd here https://amzn.to/2GjIrsc
The nose cam: sony effio V 700TVL
Mid plane: Mobius (A lens) shooting 1080p https://amzn.to/2SvO24H
Gimbal is Firefly 6S shooting 2.7K
http://www.banggood.com/Hawkeye-Firefly-6s-4K-Sport-HD-DV-SONY-16M-COMS-WiFi-Stabilization-Camera-FPV-p-996349.html?p=DU052212075452015025
DVR recording: http://www.banggood.com/SD-DVR-High-Resolution-Digital-Video-Recorder-for-FPV-System-p-952617.html?p=DU052212075452015025
