Is there a biger difference or benefit of going -38 over -10? I am looking at ScS and have no clue what's the difference. I am only planning on going with 285's and no larger, I think. I have a OME 3 inch lift with heavy springs, and Dirt Kings UCA's are inbound. I am looking at the Coastal offroad front bumper or the C4 overland bumper if that matters.