It’s not always easy to find a mold wizard at short notice. Things in hardware space are more word of mouth and relationship based. And as others said you don’t

It’s not always easy to find a mold wizard at short notice. Things in hardware space are more word of mouth and relationship based. And as others said you don’t know what you don’t know. I had a (mechanical engineer!) boss who was happy to 3D print and ignore mold DFM against our mechanical contractors advice until he finally did a mold estimate and realized it would cost half a mil to make the current design.