Ryan, I think I have seen this before and gave it some MA then.... if so, check it out and compare to my verdict here. Just as a ref, I havent looked at skiing vids for 6 months now so I got a really fresh approach
Good skiing. Its steep and the the snow is soft with little support for stearing or edgehold and its warm and its fogging up your goggles to the degree that you have to take them off. Your swetting and your pants in particular feel strange against your leggs since you dont have long underware and it adds to feeling that winter is nearly over. This is the reason your socks will not stay up and you are reminded of it everytime you lean forwards. Anyway, your rhythm is good and you keep going even though you are fighthing back trying to time your entry into the woods as planned. But its a struggle between showing off in front of the camera and playing it safe. Maybe this is the reason you are keeping a wide stance and placing too much weight on your inside ski causing banking and making your outside ski slip (or it could be part of the way you ski or it could be a part of the way you ski). In radical conditions like this you usually expose your weeknesses and the ones me and many others have picked up on are worth giving a thaught.
I allso see lack of upper lower body separation. Look how you lock yourselfe into a sertain upper/lower body position and staying in it for a long part of your turn. I would like to see your body in place, facing down the hill and your leggs and skiis mooving dynamically underneath you. Crossing under. Unweightning. Working with your knees and leggs. Work on your arms and poleplants as well. Try to separate the poleplant from when you start/finnish your turn. Look at how you plant your pole as you janck your skis at the end of your turn. A poleplant is an indication that you are going to turn. Not that you are turning. Get your knees forward and stand more upright. Now you are sitting down a bit too much. I do it too.
In snow like this you allso need to bring your skiis closer together. Now you are leaning into the hill, banking, and placing too much weight on your outside ski making it slip. You need to be braver. You need to stand up to the challange and be brave.
Is it a stem? No. Stem would be something to help you turn. Not a result of a flaw or misscalculation.
Gosh, lots of stuff to work on, sorry, but all in all, I think you are doing a great job out in the spring snow, setting up the camera, staying upright and entrering the trees fluently and gracefully. You are a good skier. Many of my students can only dream of skiing like that