I am talking about yours.
don't get me wrong, I think your handling and execution of the double is great, but the added card handling, ie flicks, can be a bit ... overdone?
I think that a single flick, used when revealing a card after a transpo or change is fine... as it adds a bit of sound and attention to the revelation. However, flicking and tapping a card after every single turn over is something that is overly done by young magicians. This and card spins actually, have a time and place where they can be used, but if you think about it, when performing for laymen, there actually isnt ANY time where they HAVE to or even SHOULD be used.
Flourishing however is a different story. The idea of flourishing is to show off dexterity, and I admit that the diving board double is a flourish, and not many magicians use the diving board double in an actual routine for laymen (if they did... well, thats a different topic for a different thread).
So, as for your video, I think it is fine, but just as a caution, really really try and consciously think about all of your actions and movements. Think, "does this have a purpose? Does this take away attention where I want attention? Does this add attention to where I DONT want attention? etc..."
If you are keeping in mind all of these things, you will be able to see in some of your videos, and in many other videos, and if I were to make some, probably a few in mine, that there are a LOT of unneccessary movements that although, not all creat suspicion, all could be removed.
Just some thoughts. But again, I think you are becoming a very well versed card technician, so keeping trying to improve and succeed in ALL aspects of sleight of hand. That being both technique and performance quality.