PS3, there's some issues with switching hotbars and using an ability the split instant the hotbar is switched. You may have to tap the shoulder button an additional time. For Coil, IF you're a White Mage, I would recommend throwing things like Aero, Aero II, Stone II, and Fluid Aura off your Coil hotbar.

As others have mentioned, using the Directional Pad up and down will cycle through party members in range.

It's an acquired taste to be sure and some of us may have gotten used to it over the last few months, so it may seem easier now than once was.