Scott, respectfully i want to ask, noticed that your mentioned in testing paint prep used in this video had a color to it, in past videos you have mentioned your disagreement with the use of dyes, as they are geared towards retail market sales appeal. i have absorbed and started practicing using preps without dyes, based on this as i found your statements valid and useful, so i am curious as to if yours is colored and if so, I'm excited/curious as to why, I'm curious of the chemical process in this sense. great episodes, always, thanks for all of your valuable input and you making it receivable!