I live in Henderson and travel almost weekly. TSA is pretty much hit or miss... but mostly miss... so good luck with that.
My problem is the TSA Pre-Check.
Since I live in the area the tram at Gate C is easier to use since I usually do not check bags. However, they do NOT offer TSA Precheck altho they do in the D gates just alongside the C gate line.
They did start for a while, but quickly stopped. The last time I went through the D gates to be 'let inside' the C gates by a TSA agent. No one showed up. Two TSA agents were coming in so tried to exit as they entered. Was LOUDLY encountered with a WHERE ARE YOU GOING!? and even when said C-gate Precheck was condescended to and made to show the boarding pass. Next time they didn't even allow C gate passengers to enter.
So now go to the main C-Gate (Southwest) security area. I show my boarding pass and am pointed to a special line that wraps along the wall to ONE TSA agent at a TSA PREcheck booth. Usually 10 or 12 people deep.
Which would be no problem EXCEPT there are TWO OTHER agents at a stand BOTH with TSA PreCheck signs that the 'general public' can get in line for and then go through Pre-Check themselves. And NO, the 'main' TSA PreCheck line does NOT have access to the other two stations.