You have to walk before you can run, and if you try to run before you learn to walk, you fall. Schools teach straight-line-only braking in order to get students not to overwhelm the front tires, and to focus on the line, on where to look, on braking modulation and so on. THEN they can bring trailbraking back into the mix.
My opinion on trailbraking is ALL fast drivers do it, even if they say they're not doing it. Show me the telemetry from a fast driver who literally comes off the brakes 100% before putting any steering into a corner, and I will eat this computer screen.
There are some good insights from people like Carroll Smith into the physics of why trailbraking is preferred, but to summarize, and completely
ignoring the effects on car balance and tire loading, and the fact that some cars require more of it than others, generally if you're not trailbraking, you're not getting all you can get out of your tires. You're leaving a lot of the Traction Circle on the table, and if you do that, you're losing time. It's well known that a tire can give only 100% lateral grip (turning) or longitudinal grip (braking, acceleration), but if you ask it to do some of both, the sum of the vectors is more
than 100%. Doing some turning while still braking maximizes your tire usage.
Waiting to come off the brakes 100% before turning is just as silly as not applying any gas until the car was totally straight coming out of the corner.
I am looking for experienced opinions on trail braking. Not asking about situation specific such as diving in to pass but just as a general way of driving. I know that Bondurant says to do it and it seems like most others say to do ALL your braking in a straight line. I trail brake and always have. Mainly I am wondering if this is a trait that I need to stop. At my current level the car sticks pretty well in both trail braking and in neutral state turn-in.