Just when I thought I had a pretty good handle on all the forms a personal vaporizer could take, along come the folks at Vapor Beast with something that I hadn’t imagined. The Switchback is a PV that can be vaped from both ends. The device can accommodate two separate atomizers or cartomizers at the same time with a switch to determine which one is currently in use. It’s an interesting idea for those who like to alternate between a couple of flavors. Besides that, it’s a good looking device.