Hi,I read at least two threads on different gun forums about how persons put mobil one synthetic grease on their semi-auto pistol rails and afterwards put mobil one sythetic oil on top of the grease. Have you all heard anyone trying this method? If so what are the pros and cons. This is interesting to find out the outcome of what your opinions are going to be. If I may add what are the benefits of adding stp to mobil one oil for lubricating a firearm such as a pistol. Thank you