I had worked in retail selling cell phones (entirely new industry to me and I never used one before).
I've never received training so I had to wing it and do things piecemeal. I had a jerk for a boss (another story) who got upset if I referred to literature with specs so that I can give the customer proper information (the list on the specs easily runs over a dozen items).
Do you think that for most prospects, your credibility goes up or down? (some have said you're supposed to be an expert). A related question is how long should it take between training and experience before you can be considered to be an expert? (incidentally I have made sales reading the product literature in front of the customer).