As stated, the thread was locked due to the growing negativity of the thread, not so much the initial post. Also as stated, paint correction is a work of art, and something that takes time, practice, knowledge, skill, and sometimes even some luck. The videos provide a great starting point into the general ideas of how to do everything, but just like everything else in life, the only way you truly learn how to do anything is to go out, make a few mistakes, learn from them and continue on. There is simply no way that any detailer or company could make a video series to cover every possible scenario (in your case, the rear end being dirtier/more contaminated). That is the purpose of the forum, being able to ask more specific questions to get more specific answers. We're all here to help each other out and to enjoy this shared passion of ours, so hopefully everyone can move on and treat this as just another learning experience. To the OP, if you have any questions please feel free to reach out to me or anyone else on this forum (I know you asked for Adam, but the team is very busy this time of year so that may not happen).