I wanted to start making soy tarts and I'm a bit confused on what wax. I picked up some container soy wax from Michaels, is this wax good enough? I made my first experiment and it seemed to work out okay but I really have nothing to compare it to. Should I be ordering a different kind online? And if so what is the difference (like is it easier to work with, melts faster in the tart melter...) Thanks!