Last year, a friend showed up to our weekly airsoft session with a $130 CED 7000 shot timer strapped to his belt. He timed his draw a few times, then spent the rest of the afternoon fighting wind-noise false triggers because the thing was designed for live-fire ranges, not GBB pistols popping at half the decibel level. Meanwhile, I pulled out my phone, opened AirsoftShotTimer, and ran twenty clean strings without a single misfire. That $130 timer went back in its box by the end of the day.