Some of the auto surf TE,s that I tried to use use the credits faster than I can earn them. One that comes to mind is ABlazewithtraffic. You can never get ahead as a free member. I will not do a 3 to 1 ratio anymore, because you can surf all day on one exchange and never get ahead. Some of the manual exchanges are the same way. I do buy credits at a lot of TE'S but not at the ones that try to force you to do so. Thanks