When the right hand is not dominant and the left is not weaker, where should tefillin be placed?

This source-based Torah study examines: When the right hand is not dominant and the left is not weaker, where should tefillin be placed? It follows the canonical Hebrew discussion through the parasha and classical Jewish sources. This localized discovery layer is a concise summary rather than a full translation of the article; practical, halakhic, medical, legal, historical, mystical or empirical claims remain source-framed and subject to the canonical review status.