The only way you can consider yourself a paint overspray removal specialist is to be able to repair anything and not diminish the vehicle`s clear-coat in the process. This means removing any type of overspray damage without the use of compounds, solvents, and most of all wet-sanding. 99.9% of everyone that is removing paint overspray today are using some form of the clay-bar. This simply means that they have only been removing overspray from vehicle sense the clay-bar was invented back in 1993. If you were doing it before that you were using compounds and wet-sanding which voids factory warranties. So just because the clay-bar is around now and you may removing the paint overspray from a vehicle every know and then, sure as hell don`t make you a specialist. I notice that a lot of detail folks may think they know a thing or two about removing overspray from a vehicle, but you only know what someone else told you to know. Long before the clay-bar was ever invented, I have been repairing vehicles from overspray damage, chemical stains, and other paint problems. This means that the instructors on this forum or any other forum don`t have the 24 years of experience and the thousands of vehicle repairs as I do. Many years before this forum was ever around I was repairing vehicles. Their answer to removing hard core Protective Marine Coatings is to wet-sand and use compounds which again diminishes the vehicles clear-coat and voids the factory warranty. The only way any of the members on this forum is ever going to call themselves overspray removal specialist is to wake up and come on out of the stone age of auto paint repair. Everyone is still using the same old ways of doing things. I can teach anyone that has a steady hand how to blade a vehicle and get paid !