[Brent Deines]

Welcome to the forum Mitchell!

I have seen some systems that are not capable of filling the break properly without drilling, so I think the decision to drill is partially determined by the type of equipment you use. Using a Delta Kits system and recommended methods it is rarely necessary to drill, and cosmetically there is no way to make a drill hole look as good a a pit that has not been drilled, so we never recommend drilling except when there is no surface chip (pit area) present, or at the end of a long crack.