Correct! I'll go ahead and give that a try. Thanks for you help! 

Im using item_description in the tooltip field, it's not used anywhere else on the card so I had read I needed to use tooltip. It's also a text field so I don't want to use an aggregates on it - I just want the value. Does that still apply? 

Thanks for responding quickly, here is an image of what im currently working on.

My tooltip field always displays as a count, and will not change to be the value of the chosen dimension(no aggregate). Any idea how to fix this?