I updated my macros page this week by removing a few, changing a few and adding one. I’m not sure if I’m late to the party on this one or not, but I hadn’t seen someone post it yet.
I added Trueshot Aura to my aspect switching macro in an effort to remove another skill from my action bars. (It also makes sure I never, ever forget to turn it on again after a wipe, but don’t tell anyone that…) 
/cast Aspect of the Dragonhawk /cast Aspect of the Viper /cast [mod:shift] Trueshot Aura
You can activate Trueshot Aura with one press of this button. Aside from that, it works the same as the original macro. It allows you to switch between Dragonhawk and Viper with the need for only one keybind.
It’s not a revolutionary macro, but it does allow for one less skill to be needed in your action bars. I created it because I wanted to remove TSA from its current keybind. I have all but two of my action bars hidden and Trueshot Aura seemed to be an unnecessary keybind, yet for a very necessary ability. I added it to my aspect macro – problem solved.
I recommend this macro for any Hunters going Marksmanship for the first time. It’s worth using in order to prevent you from realizing during mid-fight that you don’t have TSA up. Not that I’ve ever done that… 
