Our team made a couple of in-house flight tests (new rates, 3D printed extended sticks, minimum altitude to turn ON engines). Results: - ✅ New rates. Success. Although they are more racing-like. - ✅ 3D printed extended sticks. Works well. Extended sticks make stock DJI FPV controller usable when flying in 4 finger claw. - ❌ Minimum altitude to turn ON engines. Could consider that as failure. We've tried to find out the minimum altitude during which we need to turn on engines to safe land. Although we have technically crashed, we've managed to reduce kinetic energy by 75%, thus decreasing landing speed to a barely safe value.