Tug, always appreciate your Pro insights. I have not tested OC3 yet (Dr G promises to install on my new car, but I don't get to Memphis often). There are a lot of characteristics expected of ceramic coatings, including durability, UV protection, chemical resistance, hardness, gloss, slickness, etc. The chemistry to make all this happen sometimes works at cross purposes - the conflict between SiC and Si02. Optimum's original ceramic was durable (still on cars 14 years later), hard, and chemically resistant, but it wasn't as "shiny" and slick as some others on the market. The Si02 components in competitors made them shiny and slick but reduce durability, hardness, and resistance, requiring re-application/reloading. Even though pro installers don't even touch cars (slickness), customers wanted those features, so Dr G formulated Plus. The effort to be all things to all people would give Dr G grey hair, if he wasn't bald!