Brandon Smithwrote a review of Black Diamond VaporLock Screwgate Carabiner on June 9, 2010
There are lighter lockers out there (Wild Country Neon, Mad Rock SuperTech, etc.) But this is the lightest pear shape locker. I use this strictly for the master point and belay loop because it's munter hitch compatible. You can use these for building anchors or clipping into the anchor ... but like I said there's lighter and way cheaper lockers out there.