This isn't about killing anyone. Not unless it's absolutely necessary. The less killing they have to do, the better. Han has no doubt Ben can handle himself with a lightsaber; this is about new skills, not old ones.

"It's a start." Hopping off his rock he shrugs his jacket back into place, bends to pick up a couple of rocks. Moving targets take work, after all, more so when you're trying to do it without one of your customary senses. Han is expecting Ben will do pretty well, not nearly as well as he'd like. Way back when, he used to be able to get him to keep it up, now and then. Not with everything, but this one's important.

"Come on, let's see."