to tell you the truth jimmie d im am jsut a body man not a scientist so i mam not sure why u do it but i do know that it needs to be done in the old car world there are alot of different ways of getting the job done if u do a really good job at it u stay in business for a long time. What i am trying to say is i got most of my knowledge from oldtimers that have been doing great for a long time there is no better teacher.
