I am having problems getting the 631 vinyl to adhere to the walls, I do not have the option of repainting the service. Does anyone know if I use the 651 vinyl if it will pull the paint from the wall? I have used it once before (not knowing there was a difference) and the it came down without any problems after 6 months. I just want to check because this is for our church missions team so it will be up for about 1 year then it will need to come down? Hoping someone has some suggestions!