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I purchased the new Viper coil for my AT Max and have run it thru my Test garden. I think it will do just what I had hoped; a little deeper than the excellent 5x8 with near matching separation coupled with the ground coverage of the stock 8.5X11. Very stable & sensitive.

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For a deeper coil the Mars Tiger is really stable and very emi resistant. Worth looking into. It is a bit heavier than the stock 8 1/2 x 11. Not sure why people don't talk much.

Your viper should work really good in woods and tight spaces, best of luck with it.

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