First is the “Ice Blitz” takedown, which I know Chuck Liddell used in the Octagon on occasion. Opinions on this and “uncommitted” takedowns in general for self-defense.
https://m.youtube.com/watch?v=nYwmxku2faU
The second video is about favoring drilling over sparring. I had a conversion about this with John awhile back and his opinion was that you probably shouldn’t engage in nor needed to do any hard sparring at all if you were interested solely in self-defense.
https://m.youtube.com/watch?v=msT2NrHG7sw