Most carb and choke cleaners contain lubricants for throttle linkages and butterfly shafts. Brake cleaner leaves a residue, albeit slight. If you want to know how good your degreasing agent is, try to clean a mirror with it, you'll find out really quickly what works and what doesn't.
If you're trying to dissolve gunk, carb cleaner is pretty good. B-12 chem dip is good too but you may find certain parts vanish when immersed in it.
Another thing the FA mould release spray is good for is filling small pits in rusted moulds, I tried this recently and it is working very well, however I applied it with a toothpick and clamped a cast bullet in each cavity on top of the liquid and then put it in the sun for a whole day so it only filled the area of the pit.
I will get some heat for this from you accomplished bullet casters, but the physics of the matter is a fact: Free-machining brass has a thermal coefficient about three times greater than 6061 T6 aluminum. The reason not all will agree that brass both gains and loses heat faster than iron or aluminum is that most brass moulds are pretty massive and have thick, steel sprue plates. If brass moulds were the size of Ideal single cavity moulds, you'd have to have a 500-grain .45 bullet to keep them hot.