I've had the entire range of experiences from no questions to being pulled out and taken to a room and interviewed.
Stands are an issue. I either check them or better yet try to do without.
But everything else goes with me - I always am short on time and flying in day of show, I plan on taping, the show. Period. So I assume the stand if I check one at all will not make it, and carry a full working rig sans stand and enough clamping hardware that I can either manage on my own or maybe with a little help from another taper if I checked a stand that did not arrive.
Mics, recorder, cables, clamps, and yes lithium batteries, sometimes lots like 6 (the DVD style since I run a 722) all in my carry on.
Just use some basic common sense and think about what you are doing. Have everything well organized and packed methodically, allow yourself plenty of time. I do not put it in a separate bin but I treat my 722 like what it is - a computer, and remove it and put in the same bin with my gear bag.
Shoes go in first, everything else gear always goes last so that if and when they red flag it you have already gotten dressed, gotten the rest of your shit and are calm and ready for whatever happens next. At that point all you have to know is that TSA is Law Enforcement, they are not your friends, don't want them to be your enemies. Like ALL law enforcement officers they want one thing first and foremost - an attitude that immediately makes it clear to them that your are not cordial, not cooperative, not friendly, but rather you are COMPLIANT (cordial, cooperative are are part and parcel, but compliance is the key to your demeanor).
It's pretty simple really. Have your shit together, be compliant and whatever happens you will get through - I have yet to not make it... ;-)