Originally Posted by aresfiend
The Virtue clock.
As long as it's got fresh batteries in it, it's accurate and definitely has a few nice features. All it takes is tapping the trigger and you're good to go, and then you can program timers, a velocity limit, ROF limit, and even name it.
Although, it's VERY expensive.
We used clocks for all the chronos for the tournament series we ran last year, I'd definitely recommend them. Light, reliable and easy to use.
If you're going to be using it alot or plan on keeping it for a long time, the Clock is the way to go.