Yes indeed a lot of great info here - thank you and I hope this is still a living thread. I have a question to add.
As a former 1911 shooter I've known for a long time that dropping the slide on an empty chamber is not good!!! It has also been frowned upon by SIG users. Is this a general rule for all semi-autos including the Glock? I just bought my first Glock - a sweet G19! I refuse to drop the slide (on an empty chamber). What's the rule here?
Thanks all and happy and safe shooting!