Thank you! And yes, like martial arts (which I train in as well).
In Twist of the Wrist II (Keith Code) he talks about throttle control rule number one as being "one the throttle is cracked on, it is rolled on evenly, smoothly and constantly throughout the reminder of the turn." but when are you supposed to start getting on the gas? How do you time that with trailbraking?
Please correct me if I am wrong here, but the way that trail braking helps is in the moment when I am approaching the turn in point and looking for the apex. I trail until I identify the apex, and then I turn/lean more aggressively, and then I apply the throttle in exactly the way you quote until I have identified the exit point, and that is when I can start to accelerate out of the turn.
I also do not use trail braking in all turns. For example, if I identify the apex quickly, I am turning/leaning and practicing the throttle control rule. No need to trail brake.
In general the amount of time I spend trail braking relates to the steepness of the curve, the blindness of the curve, and my ability to quickly identify an apex (which is something always in need of improvement).
At my ability level, trail braking has added a lot of confidence to my cornering and I am finding that the better I get, the less I trail brake. That being said, I am never riding at track speeds, and I very carefully avoid charging turns or having early turn in points. So this works for me, as I have never trailed all the way to apex. I don't think I have ever been going fast enough to do that. I am usually on the throttle control rule the second I find my line.
I look at Keith Code's and Nick Ienatsch's books as very complimentary and meaningful approaches. Both basically give the same fundamentals, but focus on different aspects or explain the same fundamental differently. I have learned much from both. After reading them very carefully, I don't think there is nearly as much disagreement as has been suggested.
Going to CSS was super fun. I went to the Streets of Willow Springs a little over a year ago. I still need to do more, and probably will in the near future. I'd like to go to a different track, however, perhaps thunder hill or even laguna seca. We'll see.
Lastly, thanks again for your thoughtful responses, it's always great to get input from someone like you.