While I accept the video as a beginning step---generally very well done. But skipping over close-ups of parts such as the tumbler their location and pre- disassembly look see the author overlooks the fact that these parts can create problems if not recognized and the position of that part's replacement in reassembly. Yes I have Constructively Criticised the effort in so far as the lack of attention to important details which do not seem to insignificant to me. I can detail strip my 1911 down to the last screw and re-assemble---because I have done it many times and studied the gun. That gun has a few parts, and if you don't see them assembled and you don't reassemble correctly you are in for problems. I would like to have seen those little parts,(that were glossed over) ,properly highlighted. JMHO----"Doc"