Similar to my recent Fealty thread, I think industry could use a touch up...but just a small adjustment. Honestly, I think a swap of a few abilities may be all it needs. My suggestion: Free Trade: Gains +1 TR. Loses +5 gold for ITR. Protectionism: Only +1 TR (down from 2). Gain +5 gold for ITR. So what this does is give Industry a stronger bonus early (I think an extra TR is overall better than the +5 gold for ITR), but overall its bonuses are the same. Further, it gives better balance to ETR and ITR (both are boosted at the same time in the tree, which I think makes a natural sense).