I think it's a great idea to run the 200 grit Moonflex before using the Evo Pro Edger. This way I can check that the sidewall is being cleared. Also, it looks pretty easy to use, unlike the Edge tune Pro II. That unit gave me extremely inconsistent results but I loved the hardened finish. I am sold on this product. I just have to convince the wife that I really "NEED" this. She should be happy that my interest has shifted from the more expensive Snow Glide!