It's a good video. It has good lighting and has good clear content.
I'd add that to properly set the trigger over travel setscrew you need to check that the hammer hooks are not touching the sear upon releasing the hammer. You hold the trigger back and rock the hammer back and forth inspecting the sear-hammer hook interface for contact, both feel and visual. You can see this interface from the back of the gun just under the firing pin/slide. If you don't do this then you run the risk of rounding the sear or hammer hooks and that eventually could lead to an unsafe firearm. I check this every time I clean the gun in the event the set screw moves in use. It takes virtually two seconds once you do a few times and know where to look/how it feels. I'd recommend looking at it when the trigger is set slightly too tight (over travel set screw too tight) to both see and feel what is happening just for reference.
I'd also add a bit of grease to the right side safety detent to hold in place as mentioned already.
You don't need to loosen the triggerbar screw to pull out the trigger and triggerbar. It is only asking for trouble when trying to tighten it later.
One thing that can help hold the sear spring leg out of the way (if your sear cage doesn't have a notch) is to use a small section of brake cleaner/aerosol can spray straw over the leg of the spring. It will hold it out of the safety shaft groove and make it easy to remove and reinstall.
Cheers,
Toby
