Have gotten several informative responsed from forum advisors
If you have not brought the MB CD Library DON'T It cost me $130.00+tax could have purchased a pair of bi-focals,hum might have work better than the zoom-in button, final judgement is passed, obtain the tech reference books if you can spare the change($) or just as well buy some spare parts (sensors ect.) to have on hand you'll come out better even more so continue to use the forum to get first hand experience + books if you are a wrench turner which I am you'll learn more at a lot less cost
thanks Rick and Wolf_Walker.