Does the Flames of Devotion DoT talent that Goldpact Knights get and the Ranger talent that makes their pets hit harder against enemies who are under a DoT effect work together?  I know people have talked about it in previous patches and it did work.  Just wondering if it still does as I am bored at work and planning this build and have no access to PoE atm lol.  I am asking because I am planning to have a Ranger in my party and its good synergy for her pet.  Obviously the Ranger can add her own DoTs but with that talent I can have more DoTs per encounter. 

It should work. I didn't encounter a single Dot effect that didn't. For Predator's Sense you can also use wounding weapons' Dot or chanter phrases (lvl 1 & 3 Dot phrases).