Many thanks for that information and possibility. We value other roboteers ideas and views. Though I don't think we will have enough time for double elimination like we did in Scotland. We have crunched the numbers out of how many battles etc and think we have found a balance. Even though beetle weights are not really much more hassle than ant weights to put in and take out of the arena, it will still take more time and effort to get through the battles. I'm sure all will be good and fair on the day.