I've probably only ever listened to about 6 podcasts, and yesterday I spent 3 hours(!) listening to your interview. So much of what was said makes sense to me, and what was said about the typical middle aged guy (I'm 46) mirrored my experience. I have done some martial arts in the past, and have also done some different body weight workouts before. Usually after continually adding reps, or moving to the harder progressions, I hit the wall at around the 10 week mark and it all turns ugly. Luckily my work involves a lot of walking around a factory up and down stairs as a supervisor, and only a little bit of desk work. I've jumped right in and purchased the Fundamentals One, and F1 Pro+ bundle.
Day 1 has been great. Shows just how far I have to go.
Cheers