Thank you for this update of your witness' APR setting. Hope to see enough witnesses switch to it, to make it effective.
As for the competition between staked HIVE and HBD for the best APR, yes, there will be some moves from HP to HBD in savings if that happens. But at the same time, whoever wants to have a say in governance, proposals and curation will keep HP. And if some HP will end up in HBD savings, that means the curation rewards should increase for the remaining curators, increasing the attractiveness of holding HP and using it.