A current problem with the ClearLag plugin is its cooperation with Botania. As you probably know, a large part of Botania is mana, and charging items with mana. How this is done, is by dropping the said item into the mana pool... and waiting. Normally this is no issue, but with ClearLag plugin, it targets those items, and removed them, creating a roadblock with Botania.
What I am suggesting is creating a blacklist for most botania items that are meant to be thrown on the ground for their usage.