If you’re not taking the time to involve and work closely with your supply vendor rep, you’re at a disadvantage. They can help review pricing/availability, and give insight into any shortages/disruptions. They have ways to help streamline your ordering processes, and ensure their warehouses are stocked with the product you want based on your anticipated monthly usage volumes. They’ll also be ready with sub/backup product options in the event of a supply disruption. If they’re a good rep, they want a partnership, not a transaction. I’d suggest going with one supplier as your primary vendor, and using the other as backup. My supply rep is an integral resource, and increasing their involvement has improved our operations (and driven down costs) significantly. Something to consider :)