What exactly do you clean and lube other than the barrel and slide? Ive been told that you dont want the firing pin and pretty much everything in the back of the slide oiled. The guy said you want it bone dry..is this true? If you do clean the metal parts in the frame how do you make sure their oiled good...what im saying is after you use cleaner on the metal parts and it runs down into tight spaces and you go to oil it how can you be sure its oiled properly? Sorry for all the questions...im a newb. Thanks!