Hey everyone, I am planning on using Klasse AIO on my silvermist 99' Grand Prix GT. In my opinions, the paint is in pretty good shape, with only minor scratches, and no visible swirl marks. I was just wondering if it is necessary to use the SG after the AIO? I am really going for durability, so if the SG will make the product last longer, I am all for it. Also, is there an advantage to applying it with an orbital buffer? Also, I was thinking of using 1z paint polish before the klasse to take out any small scratches, is this safe? Should I use a less aggresive paint cleaner/polish for later applications? Please help. Thanks.