A couple of questions, what SSR is it? 1, 2, 2.5, or 3? Also, are you using it by hand or machine?
There really shouldn't be a need to use it every time, and if there is then we need to have a look at your washing and drying technique. Basically it is an abrasive polish and so will be taking tiny amounts of paint off every time you use it. You should only need to polish your car two or three times a year.
Chris