Drop Bracket Lifts and Wheel Offset

Most know what offset to use for a level lift 3-1, 3-2, but for all you people running a drop bracket lift 4,5,6,7 inch. what is the sweet spot for wheel offset using 12.50-35 tires putting the tires just outside the factory fenders. thinking it would be the same ???

 

My `14 Crewmax had the 7" ProComp lift with KMC XD Series Misfit wheels in 20x9, offset 0 backspace 5 with Trail Grappler 35x12.50. The tread of the tires stuck out about an inch past the fender lip. I added Bushwacker Extend-A-Fender flares so it wouldn't attract too much DOT attention going down the highway

 

Thanks. that is what I was looking for. I am looking at either 17-9 or 18-9 with 35s and wanted to know if the bs and offset was the same for all lifts 3" or 7"