by nhdungeonracer » Sat Feb 16, 2019 5:29 pm
For fun drag racing, it's hard to beat the Slot Dragon system. It's self contained (ie-no computer needed), works well, and customer service seems to be good overall.
The downside is, at least what we experienced using light sensors, is you can "cheat" the start if you have a long car. Not a problem so much with HO cars, but 1/24 cars, the longer the car, the quicker you could leave as the timer didn't start until the rear of the car uncovered the light.
Also, it only gives reaction time and ET. No 60', 1/2" or mph.
The trackmate system works well, and you can get a lot more features, but it's also a lot more money.