PokerTracker

Is Holdem_hand_histories vital to PT3? As it takes up roughly 20% of the database size, I feel like dropping it. I will never use the export function as I have all my HH backed up safely.

Thanks.

You can disable the option to import the hand history text if you like (on the Auto Import tab) but if you do this you won't be able to replay hands (as well as not being able to export as you know).
You shouldn't drop any tables in PT3 databases because they are all linked to other tables.