Quote Originally Posted by usfbrown View Post
FYI I found this laser to be a very helpful tool for all gauging wind category and cannot arcs. It's a little dim but worth the price.

https://www.harborfreight.com/laser-marker-93242.html
We have been using the laser for years. As you say they are very good for showing angles of fire. The ones we use are capable of projecting the light in both directions from the source, so that you can get the beam to spread from being half way between your two objectives and some way above it. They are not easy to find but a chap who does the Hammerhead show over here sells a few each time he comes. If you are there early enough you can pick one up. They may be on sale elsewhere, but I have never come across them.
Rob.