My opinion is that any effect in a production should be used only on occasions to make a point or turn someones head. Sorta like a what was that moment. The lyrics are really good but if you hadn’t written them down I would have never known what you were saying.
The only thing I have ever used was a talk box on a Clav back in the 90’s so can’t help you there lol…maybe ask Daniel or BAB or other volunteers to help you with the vocal, after just listening to their stuff I’d say both have world class voices
Kenny