On a daily driver I think it is pretty hard to get a 100% perfect finish /w a PC, and maintain it to near 100%. Out living in the country here, forget it. If it isn't mass swarms of bugs, or rocks/stones from the country roads, and then never mind winter, etc. I did probably about a 80% removal on my DD, and that was good enough for me. The deeper scratches I might be able to correct later, but for the most part, I am quite happy with the turnaround and given the current circumstances I am not too disappointed that the car isn't 100%.