As a professional hoarder, even I know vault space is not the issue, it's inventory space. We either need a system that directly bypasses inventory when equipping load outs, allowing items to be automatically equipped and stored in the vault, or we need more inventory slots. With armor 3.0 our builds are more dependant on massive spikes towards specific stats and set bonuses, on top of our exotics. Those of us with multiple builds are likely finding our inventory cluttered with 3-5 sets of legendary armor and several exotics in each slot.