why are control arms better?, if they are

what are the pros and cons on SD/ FBI control arms or stock control arms, lowering spendles, and bag mounts when bagging a 1993 s-10, what way would you do it to lay frame?

Well stock arms you have to modify(dehump lowers pie cut uppers) to lay bigger rims. sd's arms or any other brands are made to lay bigger tires. also with sd's or fbi's arms you dont need lower cups, the bags bolt to the arm.