![Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1 Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1](http://imgur.com/HcXybRf.jpg)
Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1
![Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1 Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1](http://i.imgur.com/Xx25h2u.jpg)
Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1
![Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1 Adam Cooper - "Here's a reaction time tester with F1 start lights, courtesy of @jaffathecake .." (direct link in comments) : r/formula1](https://i.imgur.com/jR1fYwZ.jpg)