small surface scratches
I hope jrp doesn't see this. 
to those who have fallen arguing this very topic.Seriously though, from what I have heard z-5 won't do much to get rid of scratches. I don't have any experience with z-5, but a product I highly recommend is Menzerna Intensive polish to get rid of swirls and light surface scratches. You should also consider purchasing a random orbital buffer and some nice polishing pads and go to town. There are plenty how to's on this forum, ls1.com, ls2.com, properautocare.com, autopia.org. Do some research, I did and I don't know how I ever got by without my porter cable polisher. If you don't want to buy the polisher there are other products besides Menzerna that are better suited for hand polishing.
You should post up in ls1.com and see if you can get SuperBuick to chime in on this topic. Or just do a search, it has been talked about extensively.
