Wand Macro

Hey folks,

I have been trying a wand macro to cast Shoot after a spell (I.e. a priest casting Shadow Word Pain and then wanding), but the traditional macros are not working. I have tried the following, with no success. Wondering if anyone has a solution to this. Thanks!
Basically my Cast Shoot isnt working because of the global cooldown after casting the shadow word or any other spell. The ! should toggle the wand process ON but it does not make it there for some reason.

/cast Shadow Word: Pain
/castsequence [exists] !Shoot,!Shoot

or

/cast Shadow Word: Pain
/castsequence reset=2 !Shoot, null

or

/cast Shadow Word: Pain
/castsequence [exists, btn:1] reset=2 !Shoot, null
/cast [btn:2] Shoot

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Ok yea I see. This works, maybe not 100% intended route, but it would be much easier if casting a spell didnt interrupt the continuous wand Shoot in general gameplay.
I was hoping that I could start wanding first, cast a spell, and automatically revert back to wanding - but it doesnt work like that. Oh well, this is good enough. Thanks for the assist!

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