this SIMPLE HACK made my freestyle drone fly JUICY

You've heard about all those PID hacks and experts teaching you how to tune your drone... pfffffff, check dis out!!!
If your FC has an ICM gyro, then you need to make sure there are ZERO wires of any kind above or below the FC; the wires generate noise, which prevents the gyro from working its magic and, in turn, no matter how well you tune it, there will be mid throttle oscillations...
Shouts outs to Damien aka Blackbird FPV and Jospeh aka jwebb.fpv for helping me out with the tune and getting it dialed in.