Quote Originally Posted by Thrutraffic View Post
OIC what I'm missing.

Y'all think y=(4.5*x)+15.5 is complicated math.

No, it's just not that simple. That is why nobody is offering any math equations. Cruizer already told you what you need to know, which is you can't find out accurately with math. You need a wire speed tracker or you need to field verify by pulling the trigger for a set amount of time and multiplying. Sarcasm doesn't help generate useful info.