Does anyone own both the FOX40 Miro and the ARC and can give me a comparison?

I have the FOX40 and I am noticing a lot of redundancy on this site. Is it a good idea to have redundant whistles?

Jeanette Isabelle
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I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday