Happy ending to the story. Pentair sent me a new Intellichlor unit (v2). I went from cursing them to loving them. Interestingly enough, my EasyTouch now has the feature that allows me to set different output values for the pool and spa. I thought I read that this was based on the EasyTouch firmware version but to my pleasant surprise, it was tied to the Intellichlor unit.

Pool Clown, thanks for your help!