I played drums before but I could say I still am a noobie for drum instruments. This means that aside from doing the basic drumming, I know nothing more than that especially the technical aspect of drums and other musical instruments.
In fact, I only knew one use of drum dial. It is to effectively tune any drums at any time.
I haven’t tried one myself but I, of course, seen one when we had a gig years back. And as mentioned, I only have seen it but I never had used it myself to any drums I played before. Because I was somehow afraid if I can’t make the most out of such drum dial, I just left all of those technical stuff to be done by most appropriate person. By that then, I am sure all will be well then with the drums.