I believe that you believe in what you are doing. I am glad you have the drive to stick with your position. Please keep going on this post and let it run it's course. I am watching with interest and may use your techniques on my 1st project. I am your target audience. An everyday Joe with an average car that I just want to try some common sense stuff on.
I have been in the role your are in on other forums and it isn't always fun dealing with the flak. A forum is supposed to be a place where you can state your opinions but so can others. Good luck!