Timing light troubles.

Can you explain how to mark the ballancer?

I did just order the light from Jegs, 102.00 no tax and free shipping. Orileys 149.00 +tax, Summit 139.00
Guess I see how their shippig stacks up to summits..

For a hunderd bucks Its gotta be better than my old light.

Thanks for all the help and advice.