I fly racing drones as a “serious” hobby and compete regularly in our local league and international races. Gearbest contacted me asking for a honest Ideafly Grasshopper review, “can it really fly 230km/h??”, to be exact. Although i still have no answer about that, it’s parts makes it a good starting point for anyone who wants to fly a drone!
PID tuning is the more complicated and less understood task in the FPV racing community. Although stock, default, PID values give an OK flying characteristic, I strongly suggest putting the effort into understanding how to tuning works.
This post will not cover PID tuning, but HOW-TO tune your PIDs in the air, using your remote. This will help make the process much easier and faster!