Trying sv hunter macro

hi this is my first try at a macro

i use
/castsequence reset=target Hunter’s Mark(Rank 4), Explosive Shot(Rank 2), Serpent Sting(Rank 11), Black Arrow(Rank 4), Aimed Shot(Rank 7), Arcane Shot(Rank 10)
to start on boss fights

then i run the gse to keep skills on cooldown and use steady shot

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