Tools?
Now that they were accepted by the camp people, both of them were eager to demonstrate how strong they were. Thus, they looked at the weekly comparison event's meaning changed.
Under normal circumstances, the humans were asked to spar with each other to show how much they progressed before pointing out certain mistakes others were making.
This would increase peer pressure to improve oneself.
If someone was making the exact same mistakes week after week, it would clearly mean that one was slacking off.
Being publicly called out for the mistakes was embarrassing, to say the least.
With that simple psychological strategy, everyone was indirectly forced to work hard as long as they attended the weekly comparison event.
Thus, the number of flaws they had drastically decreased since they had begun to hold these events.
Linus's efforts had paid off and he was proud to be able to show Jason what he had created in only a few years.