Review on 🎥 FLYCAM Flowline Placid Stabilizing Spring Arm - 2 Axis for Flycam Flowline & Camera Gimbals, Payload: 5-20kg/11-44lb, Provides Stable, Smooth Shots, for HDV DSLR Video Camera Camcorder (FLCM-FLN-PLA) by Ameer Kobblewood

Doesn't really do what is advertised. It was supposed to add a layer of stabilization along the Y-axis, but to be honest it seemed to be the opposite at times. 3 full days of testing and 3 days of shooting, I didn't see much of a difference. Might be worth it with a gimbal and compared to the easy to install version it's a lot cheaper so I'll take it if you think you need it. I will probably have to send it back as it is not suitable for me.