This is the biggest issue I deal with when polishing soft black paint. It`s important to do an Eraser(or similar) wipe down after polishing to see true correction. Most polishes have fillers that will hide micro-marring. So, with SOFT black paint, after a wipedown, is it the towel or polish that`s causing the haze(if present)? Lots of times, the paint will look great before using eraser.