You know, for like 2-3 weeks before I got my computer I watched HOURS of spy footage on YouTube to try to learn some new tricks, prevent rust from setting in, and just for entertainment. Somehow, I never came across this video, and I thought I saw them all. He's pretty good, though the stairstabs get a bit repetitive on there, especially when he shows 10 stairstabs on the SAME SET OF STAIRS! But, I do admire how fluidly he finds a target, gets in position, takes them out, and without missing a beat starts the process over again.