@Payyn, Sometimes can be tricky if using AHK or Razer. It has to be just a quick press of the shift key in order for it to toggle on if you hold shift too long it will toggle on and back off again.
But I think this is the best we are going to come up with in order to keep shoot in the macro. The only other thing would be to remove shoot from the macro and place it on its own hotkey. And even at that I still seem to have some issues with Shoot working correctly. It is a finicky thing it on its own it seems. Any movement will cancel it casting another spell will cancel it. Would love to see it work like a melee auto attack. Such as once you toggle it on it just stays on until you actually physically turn it off again and would Wand when ever idle.