After a lot of screwing around with different Whispering Dawn macros I finally settled on this...

/ac "Rouse" <me>
/pac "Fey Illumination" <me>
/pac "Whispering Dawn" <me>

No Wait command in there. How does it work? You press it twice (or mash it until it goes off.) Everything I've tried with a "wait" command is iffy, and while it always works while standing alone, seems to only go off about half the time in actual practice. This one is solid and always works, assuming you remember to press the button more than once.