Have you contacted your dealer and taken advantage of the free owners classes? It can make a huge difference in your success. The problem could be some easily fixed needed adjustment or step you are missing. Anyone can have tension problems with any (brand ) of machine... Seldom does it really have anything to do with a particular brand machine Once learned correctly. If you have not (bothered with) the free classes there is a good possibility you may have the same problems with whatever new brand you try