This job was only a 1-step correction)basic) exterior detail, and with Nissans clear being relatively hard I was only able to get a small amount of correction even when using M105/yellow polishing foam using the KBPCM. Luckily this car was very well maintained, so it only added to the cleanliness. Even though the customer was only paying for a 1-step correction I found myself fighting for that extra little bit of correction. Before. Prepping to Polish. My test panels to find which method worked best.