The big thing about Diamond is I now pitch it straight from the fridge. If the slurry is fresh, say only a few weeks since harvest, it will take off like a nuclear bomb.
There is no need for a starter, and no need for it to warm up.
My first experience was messy! Took the slurry out of the fridge, and sat it on the countertop while other activities were taking place.
Next thing I knew...there was yeast climbing out of the container, walking across the countertop, and sliding down the front of the cabinets and oozing across the floor.
Yes, this stuff is potent.