For RC work I have a plastic grocery crate that I place upside down on the bow of the boat. Mounted in the middle of it is an old casting rod, with 8-track tape (instead of string) on the end.
This makes it a snap for setting the starting line as the crate has perfect 90-degree angles. So, I just line up the tape even with the crate, site across the crate for a 90-degree line. Then, of course, I have the mark boat move forward of the 90-degree area to make a slightly port-favored line (best way to get fair starts for the whole fleet)
By the way, our store is where I got the Windtronic for Mary. I am pretty impressed with it. I have used all the others and this is by far the best one. The worst I ever used was Speedtech.., and they are jerks to work with. Often their product would not work right from the get-go, and they would not take it back.
Windtronics can be seen at
http://store.catsailor.com/tek9.asp?pg=products&specific=jnrppopqj8Happy New Year!
Rick
