My neighbor has 2 P32s and I'm going to buy one of them from him. He has given me the choice of either of the 2. I've shot the one starting with 8 and will shoot the other one this weekend. I've checked the 2 guns over and the only difference I can see in the two is that the one starting with an 8 seems to have a purple tint to the black aluminum frame when compared to the color of the one starting with 7. Additionally the one starting with 7 seems to have some very rough machining marks inside the slide when compared to the smoothness of the other. Is there really any difference other than these two cosmetic ones? BTW - both of these were supposedly bought at the same time.