Crap
There are only two ways of approaching faster than 75%@6s - 1) gravity well breaking (depends on approach vector) and 2) using the exploit of engaging SCA but staying off-course until very last possible time so it disengages at the station virtually instantly.
(I don't do 1 as I am crap at aligning it and I don't do 2 as it feels like cheating to me.)
Loop is actually second after a well performed gravity break (and ofc after SCA fast drop-off)
Below the supercruise comparison splitscreen movie
- 75% all time
- 7 (6) seconds rule (100% till 7s then 75% throttle)
- loop
- gravity break
Guess it will be a nice self-explanatory tutorial for the fresher pilots among us