Crazy timing. Mine arrived 2 days ago. The wing 3 on my scale was 1lb 5 oz. Feels like a brick. It’s unfortunately flawed in very serious ways. You need a VERY heavy duty tripod to make it work. I could not get a steady slide on my trailpix, or even my full sized regular tripod. At least not with my 3lb camera. I’ll be returning it.
I’m on a serious hunt for an UL slider. For my next trip I’m bringing a weird little motorized camera dolly called a Kingjoy Kamisafe, and a flat piece of plastic for it to roll on. The total package is 14oz. I’ll let you know if it works out.