|Ok so in short
all trinkets i know of have a 30sec cooldown on equip
so if i have a priorised trinket (in fact i do Hazzarah's Charm of Healing) which is changing places with another trinket, after i used it it changes it's place with the other one.
Now the feature: the priorised one should be equipped when it'S cooldown hits 30 sec instead of zero seconds!
I hope my description explains what i mean.