Originally Posted by RetoF3X
Further weaving left to right several times on launch is also an efficient way to keep others away from launching (duration, distance)
True, but that was never the intention. I only ever used this technique for speed and occasionally in distance when I was lucky enough to be at the end of the winch line with a cross-wind which would allow the model to be weaved and circled outside of the winch lines. This was more difficult but when the launch was eventually commenced it would be like starting from say 200 m. away directly into wind with nearly all the line still on the drum with the added benefit of being able to watch the launch 'side-on' and therefore better judge the release point.
Also there were murmurs about banning circle towing on safety grounds. I didn't want to do anything that might antagonise the murmurers !