Now that the old day job is almost completley in the past, I will be doing a bunch more video content both on social media and on my YouTube channel. Here is one I filmed a week or so back on one of my faovrite submissions. However, what I consider the important part is not really the armlock, but the positional control. Even if you never wnat to tap someone or have the abiltiy to destroy their shoulder, the points on dominant positional control are important.
https://www.youtube.com/watch?v=DeNCf8DOuWU