I love the idea of using this for catching fish - I never catch any!
For my purposes -getting home under sail through narrow channels- I've gone down to a radius of 25m at 5kts of boat speed. This makes the boat steer rather haphazard, and I settled for 50m now. But for trawling at 2-3kts you might try your 10m radius, with a large max error angle (up to 45-90 degrees), choosing your waypoints say 15m away from the nets. For choosing the track, anticipate for wind and current.
Tell me where I loose you in the documentation, I'll try to make it clearer. The basic setup is all in the first paragraphs.
For my purposes -getting home under sail through narrow channels- I've gone down to a radius of 25m at 5kts of boat speed. This makes the boat steer rather haphazard, and I settled for 50m now. But for trawling at 2-3kts you might try your 10m radius, with a large max error angle (up to 45-90 degrees), choosing your waypoints say 15m away from the nets. For choosing the track, anticipate for wind and current.
Tell me where I loose you in the documentation, I'll try to make it clearer. The basic setup is all in the first paragraphs.