Muro FDVL41 Auto-Feed Screw Gun FDVL41 Speed Driver Muro 800/665-6876 Street price: $650 For fastening decks, one tool stands out far above the rest - Muro's FDVL41 Speed Driver. Having owned this sweet tool for nine years, and used it to fasten 99 percent of my decks, I'd recommend it to any deck builder. I know it survives on the job. Don't think I haven't used other screw guns. About two years ago, when capture-head screws (flat-head screws, like FastenMaster's TrapEase, that eliminate mushrooming in composite decking) were first collated but not yet available from Muro, I tested six