Quick comment on DBX "hot scooping" - depending on how long you need to sustain it and how much you care about a few dashboard fires breaking out here and there (I wouldn't necessarily recommend this if you're going to Sag A* or beyond, or if you're carrying hard earned UP's in cargo hold) - you can easily cook the thing well over 130/140% without too much bother (might be an idea to remove the smoke alarm batteries first tho). Typically I'll charge FSD as soon as I can and peel away from scooping towards my target when heat gets into the upper 90's. Depending on star type that typically leaves me around 135% before things start to cool down again.
I fly mine this way too sometimes. Not because I'm rushing, but because i love that flashing warning beacon that goes off when the ship overheats. Disco Inferno!