i think that if someone did build a spinner arena it will have to be replaced in maybe 2/3 years anyway as spinners will just get even more powerful over the years
(just look at feathers) a few years ago spinners were very weak compared to what they are now - some of them or most nowadays r better then some of the heavys shown on robot wars lol
and in a few years time when better/lighter motors come out - if they do? then i think that the arenas will need higher spec?
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