But OP is supposed to take this advice? SMH. Brother compounds have melting points for a reason. This isn't something somebody just made up one day and said hey let's tell them that it melts at this temperature. There is a reason for melting points, and if you're not bringing your compounds to the melting point there is no guarantee they're going to stay in solution, and most times from my experience will not crash in the vial. However it will crash inside your ass or wherever you inject it leaving a knot behind. In case you didn't know the kmot is from it crashing due to either somebody not bring it to the correct melting point or not enough solvents. Usually the melting point and the time at the melting point.
Will it work doing it the way you're doing it by throwing everything into a beaker and throwing it on the hot plate? Yes it will as long as it's a easy compound to hold but you start getting into making injectable orals or blends and good luck with all that.
Serious question for you brother. If I was to make 400 mL of this how would you go about filtering it? A syringe filter, a disposable bottle top filter, a glass filtering funnel hooked to a filtering flask, or a capsule filter and what material membrane would you use?