Coyote
Many regs are chrome plated brass, or alloys. Engraving them would obviously disturb the chrome coating and lead to accelerated corrosion, cuts to you and your gear, and may void warrenty......... We'll use regs as an example. All regs have a serial no. for warrenty purposes. I always catalouge these numbers for safe keeping and mark the gear with paint pens and plastic tags. If someone is bent on stealing it's history weather it's engraved or not. Marking it so it's highly visible is a quick way of distinguishing your stuff from others. I tape the outside of my cam buckles on my fins with duct tape. It eliminates the potential of catching, or comming apart. It looks like hell and nobody wants a crappy looking fin. I could find them in a blizzard. My ss back plate, singles adapter, and reels are stamped with my name. My lights and accessories all have rings and a big dog clip to mount them to my harness as well as having my initials on EVERYTHING, weight and lift bags, weights, and even the gear bags themselves. Don't be shy...........