As part of a rigorous mold tryout, it is essential to instrument a mold to see what is going on inside the mold.

Almost everyone goes to a mold tryout, stands around and hopes for the next part to be good after changing things without really knowing what is happening inside the cavity. Today it is so easy to look inside with sensors as opposed to simply guessing that it is almost negligence not to take a look. An instrumented mold allows you to look and see whether the mold can be packed properly without adverse effects.