Hi There!
We use the following method:
First run of the day, we throw a "streamer" out of the airplane at 2000ft directly above the dropzone. This streamer is simply a small piece of wood with a brightly coloured piece of cloth or paper attached to it.
Then you simply watch where it lands. This is a simple and accurate method of finding the ideal exit point.
It disregards the drift during freefall, but hey, if you`re such a hotshot skydiver you`ll be able to make up for that during your last 2000ft
Good Luck.
One last tip: Never, never let the jumpers decide on the exit point by their reference to the ground from the airplane. Only very rarely will you find a jumper that can accurately judge his position by looking down.