Not too long ago quarter skins were the only option for our cars, many were installed incorrectly like the ones on my car. Full quarter panels saves on welding and body work. Since the car is going to be black , I also wanted to get rid of the welded body seam line so I dont get that dreaded ghost line that shows up when the sun shines on it. Another advantage is that I was able to blast in the areas I could not reach with the quarter panels on.