Luke didn't pay much attention to the three girls' training. He set up the training program through Little Snail, and had Butterfly supervise the training.
All he needed to do was check their progress from time to time, just like the leaders of big companies, and he had Butterfly do random spot checks of their learning progress.
In any case, the three girls' superpowers were a little excessive to begin with.
They needed good and cautious mindsets; there was no need to increase their combat ability before they faced this complicated and dangerous world.
After a few days of training, Butterfly collected a lot of intelligence on the three girls. After analyzing it, Little Snail gave a more optimistic prediction: There was a seventy to eighty percent chance that the twins would be useful to him, and they were worth training.
There was only a thirty to forty percent chance that Stacy would accept someone else's leadership.