I understand what you are saying... another post stated they had 29.5 Carnivores on a 15" wheel with a 5+2 offset and a 3" lift bracket, and factory control arms. They said they did not rub, so being excited about that concept, I ordered the similar spec tire and wheel but went with a 4+3 offset. and on tight turn and big suspension movement my tires rubbed.
The only difference was 5+2 vs 4+3. not sure how well they tested but I know that I rubbed. Sharing just to let the community know my experience. I am certain forward front control arms would resolve this, but so will the floor board cutout.
Keep the community informed of what you do and your experience.