I do. It's not bulky it's basically a machined cup. I bought 2 sets of magnets and put it on the passenger side if I'm not using it.. And it's easy to remove for autocross. trust me this thing is STURDY too!
Www.blackwatchracing.com you just glue the magnets on the backside of the plastic sills. Just try not to pinch your fingers with the magnets they are crazy strong! I my opinion this is the only. Upholder lotus worthy!