Once the oil becomes so thick that it strings out when still warm, like too much mozzarella on a hot slice of pizza, its going to shatter up once fully cooled and cured. IME it may be hard to the touch but it takes a while to set up full strength. I like to wait a couple hours before messing with it unless I need to test dab... lol
Here is some Ole Betsy done using the same method.
Here is some Ole Betsy done using the same method.