My 3 cents. I think most people have already said it. Dual serve much better purpose, Tights spaces, weigh depend if you park level or not. This is a dual swing out made by 4X4Labs. Quality is among the top builder out there. My buddy just bought a Slee dual swing out, we compare side by side. 4X4Labs has a cleaner look and higher angle then Slee. If you live in Northern Cal. I took advantage of their in house installed (2 hrs. labor charge) while I wait. Luke Porter is the owner of 4X4Lab, he and his crew did a clean installed. I'm glad I went to this route when coming to choose the rear swing out. I'm Sure the Pooch is Happy as well when we at Mojave National Forest.