If you own a rotary tool (dremel) you can hugely improve your drag. Take the stack out and polish the metal drag washers on both sides until they're slick and shiny. The best carbon drag washers in the world aren't worth squat if the metal ones are rough. Use the polishing wheel with some metal polish (Flitz, Brasso, etc)
Wrap tape sticky side up around a block of wood and stick the washers on to hold them flat while you do this. Whether or not you grease the washers with drag grease is personal preference. Either way, doing this will do wonders.