Review on 🚴 Planet Bike Auto Head Floor Pump by Jimmy Bores

This is a very high quality part and works great with Presta valves but I have a stupid bike setup with Schrader rear and Presta front so I use both. I can't figure out how this works reliably on a Schrader valve. It fits the valve perfectly, but nothing seems to push the pin in to open it for filling, so most of the time it just blows air to nowhere. It may just be user error, but it's not exactly a complex operation and I've had no problems with other pumps. I've managed to use it successfully about twice after a long time of fiddling around, but I have no idea what I'm doing to get it working, so it's quite frustrating. If I could figure it out I would give 5 stars.