You probably do NOT need to relube them. That "blue lube" is really worthless. I would probably give them a very light tumble lube in Lee Liquid Alox.
You can put about 500 bullets down, on their sides, on aluminum foil or a casserole dish and squirt a little LLA in a "Z" and then shuffle/rotate the bullets. In 30-60 seconds, they will all be lubed (they should all have a wet/shiny look and NOT be yellow/amber/frown). Let dry over-night and load. LLA does a great job of eliminating most/all leading with slightly under-sized bullets