Re-training! The generalised models are... Generalised. They have learned to pick up details from a vast, varied data set. You can reuse that, and fine tune to

Re-training! The generalised models are... Generalised. They have learned to pick up details from a vast, varied data set. You can reuse that, and fine tune to the model to your specific data set, which could save you days worth of computation, and also decreases the data set size requirement on your end.