Piokilek
There should be a method that allows them all to share the bracelet’s power to upgrade and refine their qi of the 3 elements Xuefeng’s bracelet already controls while Dual Cultivating. That way they all could advance along side him. Plus, since Xuefeng would be connected with one of his wives their absorption rate could be magnified because the strain on the soul would be spread out. Thinking about each Dual Cultivation session as a mini phenomenon in elemental qi, then even bystanders can piggyback off the concentration of elemental qi. Last thought, if Xuefeng can absorb one element through the bracelet, why not all 3 at the same time?