Goods may cause problems beyond their value; for example, furniture may have not easily seen bedbugs, which may cause an infestation which is difficult and expensive to eradicate.
The "tire pressure differential" strategy offered the disadvantage that owners and mechanics could inadvertently but easily re-introduce oversteer characteristics by over-inflating the front tires.
This arrangement allows the water displaced by the passage of a narrow boat to flow easily under the towpath and around the boat, enabling relatively free passage.
