I used the above set with no problems. I make sure to have the default action bars for my slaves. Macro 1 goes on the 1 key on action bar 1, (when you have default bars you will see a little arrow where you can change action bars on the right). 2 goes on key 1 action bar 2, 3 goes on button 1 action bar 3.
I have then bound the 1 key to an extra button on my keyboard on the left so I can spam while playing my main manually.

I have an awesome set of swap macros for my shadow priest I'm very happy with from that site.