About that Planetary Braking, how do you do it? It never stops me enough and I still miss. That or I cut it too close and 'hit' the planet for an e-drop; which is less of a problem with landable planets post horizons (you just go into orbital cruise for a near-miss).
Like robinjb already explained it's the gravity of the stellar body that slows you down more quickly than the FSD alone can manage (in this environment). Gravity braking is (nearly) always faster than the 6-second approach, even when you overshoot massively and have to do the often so-called loop of shame. I normally do a gravity braking loop at all planets above a certain distance away, but there are no simple rules for that, as every planet and station orbit is different. However with planets close to the star (<40ly) or ships with low maneuverability (Conda, T9, Cutter, etc.) it's often better to ride the 6 and give the ship a quick full-throttle-kick (and then go back to 50% or 0) when you are at a distance that allows the gravity to slow you down sufficiently.
I'll maybe try to do a better tutorial "soon", or maybe there's already something avaiable that's more comprehensible than this heap of words randomly thrown together

Edit: Drakhyr was faster
and more comprehensible.
I think in the videos of the more experienced racers (that will hopefully be linked to in this thread in the next days) there will be a few different types of SC approaches all using some sort of gravity braking.
The thing with the OC zones is that I'm usually too fast to enter orbital cruise, so they act pretty much like (slightly bigger?) exclusion zones in practice. More data needed to confirm that though.