This is what I roll with and how it works. This is for CLCInfo and I don't know if it'll work for CLCRet
Pre-Combat, no proc, no Icon.
It procs, and I get the icon with a countdown timer letting me know how much time it's up for.
After it's finished, the icon stays with a countdown letting me know how long till it's ready again.
return IconICD(XXXXXX, 115, 0, 1, 0.3)
XXXXXX =
109744 Heroic Creche
107988 Normal Creche
109742 Raid Finder Creche
IconICD(spellId, icd, alpha1, alpha2, alpha3)
spellId: id of the buff to track
icd: duration of the internal cooldown
alpha1, alpha2, alpha3: alpha values of the 3 states
1: ready to proc
2: proc active
3: proc on cooldown
Icd Code explanation is from :
1. Icons - clcInfo