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I don`t want to be the one to p on your fire but this and many more questions like it have been thoroughly flogged to death before on this forum.
They will be on the pages for you to look at and all the answers are ready to read.
Like I said I`m not one to p on your fire so I`ll give you the best advise.
KNOCK ON THE DOORS AND SPEAK FACE TO FACE WITH PEOPLE....EVEN IF YOU OFFER A FREE DEMONSTRATION....DO YOUR DEMO RIGHT DOWN THE MIDDLE OF THE DRIVE....IF THEY END UP NOT HAVING THE JOB AT LEAST YOU CAN WALK AWAY LAUGHING AT THE STRIPE....