I purchased a 3913TSW in 1998. This was my first and up untill about 4-5 years ago my only carry gun. I have no idea the countless rounds through it. Its been carried, shot and honestly probably not treated as well as it should at times. It has never missed a beat. I have in the past few years set out on the journey to find the ultimate carry gun for me. I have bought bigger, smaller, thinner, fatter. When its all said and done I think I have finally found it. Its my 3913TSW. I am wondering is there anything I should do as a tune up or if anything. I have considered converting it to DAO because the transition still gets me at time. I dont know whats involved. It wont become my only carry gun but its certainly moved back to the top.