I wouldn't waste your time on Skyyr's films, they are purely an ego massage for a once decent MA player turned cheat.
I have to echo the others The Air Combat Tutorial Library by Requiem is very probably the best training library out there.
I haven't seen Requiem's tutorial. I'll search for it. The problem is when searching for AH3 content, most of it is old and not weighted heavily in search, so it doesn't come up easily or it brings up AH2 content. Did the flight model change at all from AH2 to AH3?
I'm somewhat familiar with the Skyr accusations. I believe they revolved around him reportedly being banned for tracking other players with shades. While I believe that's likely an advantage of sorts, I've never seen anything that suggests his actual flying was illegitimate. In fact, the video they posted along with the AH film file seems to prove he was legitimate in terms of skill, if not just an bellybutton at times.
As much as I dislike the stigma around it, his channel really does seem to be the most popular and largest for AH3. We really need more current AH3 streamers and content makers. It's kind of sad that we have this amazing game from Hitech and almost no one is making content for it now... and the vast majority of this content is almost halfa decade old.
I did message him to see if he had any other videos and he sent me several links to more recent gameplay which was hidden/unlisted on his channel, along with duels to other players. I guess this wasn't his only training video, he just doesn't make most of them public. I asked him to publish whatever he could and he said he had a few fights with certain players in mind he'll be publishing soon.
On the topic of training, I noticed in the video he seems to use a HUD ladder. Does anyone know why? It seems to me to be a bit useless.
Would any current players be up for making content or streaming? Is there a list of AH content pages or channels anywhere on the forums?