Excerpt: If youâ€™ve ever grinded a kinked rail or busted a sweet bar-spin over a tabletop jump, you know what it means to be extreme. Wouldnâ€™t it be even more extreme to capture that frontside 360 on a camcorder? Samsung has the answer. The SC-X210L sports cam ($599 MSRP) has a weatherproof housing, fits snugly into a pocket, and comes equipped with a helmet cam. But does the video quality and choice of auto/manual controls match its practical design?