Best I Beam?


I am currently racing Short Course in a Mid 80's F150, the series requires we use of the stock lower suspension components. My truck currently has the 87-96 style beam which have the camber adjusters in the beams and ball joints on the spindle. I have noticed that a large amount (not all) of my competitors use the earlier style (80-86), which have the ball joints in the I beams.

Since my current beams need to be replaced, should I stay with the 87-96 beams or switch over to the 80-86?