There's a moment of hesitation as he runs over the plan and its components. "Day after tomorrow," he suggests, then, with a little hunch of his shoulders at making the decision himself, but at least he did it. He needs time to track down Dogma, somehow verify that Dogma will talk to him after the train-guy feelings, and work up the nerve to ask Dogma if he will let him use that obstacle course again with Steve. And if he wants to come, he supposes.

Definitely gotta have an extra day for all that.