Winters had a guess: Roy was still in the "strain" phase, while those dead Herder shamans had been "snapped."
However, Winters wasn't sure whether the "muscle" metaphor was appropriate.
He also wasn't certain whether the operational mode of the third hand was really like that of a flesh-and-blood arm. It was the only "self-consistent" logic he could come up with at the moment.
So theoretically, as long as one used Moritz-brand sedatives and waited for the third hand to self-repair during sleep, it should be possible.
Even more, there might be gains to be had after recovery.
By regularly undergoing "Moritz-style" overtraining, Winters's spellcasting abilities had improved much faster than they had in the past.
Therefore, he speculated that the process of "tearing and healing" could make the "muscle," even the "bone," stronger.
But the problem was that Winters didn't have that kind of sedative herb on hand.