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 Jason Bolden

It doesn't really do what it promises. It should have added a layer of Y stabilization, but to be honest it felt different at times. I spent 3 full days testing and 3 days filming, 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 return it as it doesn't do this for me.