I wanted to completely rule out the possibilities of this design. With a very quiet exhaust, I didn't want to hear plate leaks. I was afraid of other designs because they looked like they might leak. I had trouble gluing this design just before closing. I've also had issues with sticking if it hasn't been used for a while. I really like the design of the switch. It fits in place of the factory rocker arm. If you have a louder exhaust and don't care about the derailleur design, I would go with a different design.