While we are on the subject of TB Ponies...I have a very old Pony that has barely been used. I have used it some every spring to cultivate my garden. I have a TB Horse f for the heavy work. On the Pony all the tines point inward and it pulls the soil into a ridge in the center iof the tilled strip. Can I re-arrange the tines to leave a flat area behind the tiller, like the horse model?? It looks like the tips of the outer tines may extend out side the shield. Any one else tried this??