I had moved from C to D rated tires because they are more durable in tough offroad conditions. I'm willing to sacrifice some ride comfort for that.

 

D is best of both worlds on a light jk. Off road durable but sidewall not so stiff to kill the ride completely on road.

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I meant I'm willing to sacrifice some DD ride comfort, at 30 psi.
Off road, the D is soft enough at my regular 16 to 20 psi.

 

I have BFG KO2's in 35x12.5-17. They are E rated. I run 35 psi on road and 20 psi off road. I can't tell any difference between the stock mud terrains which are C rated and these. I go on rocks and have had no issues with the sidewalls not flexing. I should be getting some videos of last weekend at AOAA some time next week. I'll post them if there are some good ones showing the sidewalls flexing. We ran mostly blacks so the videos should be good.

 

Same here, i run BFG K02's in 285/70/17, E rated, at 32 psi for daily driving, and i don't feel the ride being harsh, still on stock suspension until next week. I've ran many tire combinations throughout the years in different sizes and load ratings, if i could choose i'd go with D for daily driving, but since some of our trails have some sharp rocky sections, i prefer E myself, D will flex their sidewall better, but i like how the E rated BFG's run at 10 psi, and again, i don't feel them harsh at 32psi, they're way better than stock.