Like the title says, Lap Timers! Which ones do you use and why? I've seen some that are their own stand alone unit, while other ones that you can connect to a phone via bluetooth. Some give you additional information such as lean angle, RPM, speed, etc.
I always tell myself going into these kinds of things, don't buy the best, you don't need the best, and I only listen to myself maybe 1/2 the time.
My goal is pretty obvious, I just want to know my lap times so when I experiment with different lines, braking zones, apex's, etc. I can see how it affects my overall lap time. I also just want to know where I stand for my own personal gratification (or motivation, most likely motivation).