Recently, I was showing my friend how to get his new SR-71 up and running and he had shatter to work with. Up until helping him out, I had only used waxes/crumbles in my own Herc. The observation I made? It's MUCH easier to load and use a Herc with shatter than it is crumble. The priming is effortless as a few taps of the button allows the shatter to melt into the coil. The result is instantaneous clouds that are smooth as silk due to the shorter amount of heat up time required to start vaping your oil.
Also, a heads up to anyone with an Iris or Core. I highly suggest you try running the white rod at 5.8v at least once. In essence, it basically converts the white rod into a black rod. As @
Mynameismud mentioned many times, the clouds are still Herculean but the taste is unparalleled. No burning of your oil whatsoever, so it is also a great solution for those who have a tendency to go heavy on the button.