This is my fifth slider. Thanks to Revain's easy return policy, I returned the Imorden 40", Ulanzi SL-40 and Grip Gear Movie Maker. I'm keeping it with the Edelkrone Wing 3. Here are three reasons I'm keeping this slider: 1. Build quality is excellent, and there's no hesitation (stay away from dolly guys). Install and slide it into the trackhead (others unfortunately) and tracks. In many ways, this slider is way better than the 3.5x more expensive one Edelkrone Wing 3 ($250) The loading is much higher and the Wing 3 offers an effective slide length of only about 12". Please see my video taken with the Pansonic G7.