The remark about sloppiness gets a halfhearted glare, but Rinzler doesn't try to explain himself or disagree. The rest of Zam's judgement, he watches without responding. That said, he watches all of it, which, for anyone keeping track, is quite nearly a first. This isn't the first time Zam's treated Rinzler differently than he expected, and even he's having trouble not acknowledging the trend.

Knowing how to take down a target isn't Rinzler's problem, but combat practice certainly sounds more entertaining than talking for an hour. Whether for that reason or for others, there's no objection to their offer.