I've done both. most people think spring under is cheaper, but since I wheel the springs would go flat in less than 2 years. have to replace springs $600. did that 3 times. went to soa with Rubicon 1.5 springs. on my 3rd year with them and still going. I think it rides better now, and I removed the sway bar, track bar, and pan hard bar. Yes I have to drive slower on tight turns. the other savings with soa is I dont have to keep replaceing my exhaust and other components from cruching them on the rocks.