I have used a LOT of paint correction products and processes, as anyone who has viewed my build thread will know. This weekend I was a bit bored and at my parents who have a driveway. Weather was perfect and I had the house to myself. But no cleaning kit! Went to Halfords with every intention of getting some tech wax and just giving it a quick spruce up. Bought the Farcela G3 scratch repair kit and the hand cutting compound applicator in a two pack. I totally expected it to be turd. And it was when used as instructed on the pack. But let me cut to the chase, I changed the way I used it and it is excellent! So to anyone with a non metallic black car struggling with swirls and scratches give this a go. It is a great product. I changed my approach and used a water sprayer and with the same amount of product continued over the whole car again in vertical and horizontal strokes covering each panel with two strokes in each direction. Previously RUINED bonnet. As I applied the product, three pea sized spots per panel and lots of water. This is before sealing, after this I glazed with black hole and sealed with Autoglym HD. I haven't used my rotary on this car in over three years, it is washed with a brush in true "haven't got a clue" valet style. Although it is regularly polished, the car has had more sprays than the girl next door and is generally ruined. However I think it shows what can be done with a bit of elbow grease. Paint correction doesn't have to be expensive, its all about time, effort and hard work.