[James Blint]

That's what I'm trying to achieve by downshifting while braking, right? Downshifting puts me into higher revs which then allows for harder breaking. The problem here is that I seem to always be clicking downshift a millisecond (or 10) early, and instead of the transmission screaming about it but doing it anyway, it simply disallows it entirely. Then the time it takes for me to register that what I did did nothing, I'm WELL late on downshifting again now that I'm certainly at low enough revs.

I guess if I were going to program a gearbox to have downshift protection, I would queue up inputs that come when downshift protection would be engaged, and if after less than a second the RPMs were low enough for a safe downshift, I would immediately trigger the downshift. If instead I did not detect the RPMs going low enough in a short enough time span, I would then ignore the input.

Video games do this sort of thing all the time for button inputs... cars makers haven't figured this out?

It's looking like I just need to retrain my brain to make sure I'm just a teeny bit lower RPM before trying to downshift.

What i meant was, if you manage to get the right gearbox setup to brake at the highest possible rev in most corners of a track, you can stay on your entry gear a bit longer so you prevent the downshift protection and still get the engine brake that you need. So this also comes down to how you set your gear box, personaly i look more into that aspect than staging the gears for perfect power range, it's a trade or you do the trade yourself by hitting the limiter like half a second, instead of having to downshift one more into the braking zone, since there s also that as well, sometimes it's not an rpm prevention but just trying to downshift too much gears in too little time. But i ve also had hard time with that in the TT, i was feeling for no apparent reason it wasn't kicking it down.