ScratchX is a MILD paint cleaner, I have removed small scratches from dogs jumping on the car and mild swirls. If the swirls are bad, you may want to move up to a PC (dual action rotary polisher) PC is short for Porter Cable 7424/Meguiars G100, or their new G110.
Wash, Clay, ScratchX on big stuff, polish, wax.
Meguiars online is a great resource for polishing needs, Mothers has a forum too but I use only Meguiars products.
I have ScratchX'd my whole Yukon with 1/2 a tube of product, a little goes a long ways. do small sections (12X12), do more than one application and remove product before it dries, the only Meguiars products that NEED to dry is their waxes.
On my Yukon, I use the following:
Wash-Meg's Gold Class wash
Clay-Meg's smooth surface clay/Quik Detail as lube
Meguiars Mirror Glaze 83/80 by G110 (PC)
Wax-NXT 2.0 or Meguiars Mirror Glaze #26.
Check these links out from using ScratchX by hand to remove defects
Remove defects with ScratchX
How to remove swirls by hand with ScratchX
I know others may like Zaino, Mezerna, Mothers products, but I Like Meguiars products and easily affordable online or a lot of auto parts stores.
This is my entry when I did my Yukon (only got half done, LOL)
1/2 a Yukon.....
And this is on my commuter, '05 Dodge Neon (sorry, it was cheap!)
'05 Dodge Neon
Aaron