Well for starters I have to say I had quite a bit of time to try and drill out the butt mount, not only is the drill bit about $20 but you have to grease that suction cup or your drill bit will explode like mine did. The truck design itself is pretty nice and solid, but the Heim joint is a complete sham, it makes a popping sound when it turns since it was installed. - that's not entirely Heim's fault, although that's how it's primarily arranged. A better design would be a double cut rail/aftermarket mount with no lip.