Take away sidewinders completely. Let mm hunters just use arcane shot and multishot but give both shots the same cool down and focus regeneration of sidewinders. Make aimed shot castable while moving and revert mastery to the old wod style ( I think it was called sniper training) the new mastery is what is causing barrages problems anyways. Boom. Perfect spec.
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And replace sidewinders with a talent that's makes arcane shot and multishot spammable like currently for those that enjoy that. I'm a genius.