Trying to Get Columns to be same height

I am trying to get 3 columns to be the same height. Site is at rw.lauramarrprinting.com/testcard

Right now I have Joe's Match Height stack and in that I placed a 3 Column Stack. Each columns has a Card stack in that. The card has a header inside another Match Height stack that should match the height of each header, then a pic, then more text.

The headers are not the same height so that is throwing things off and the columns are not the same height also.

So, I'm thinking it is because all the copy - headers, pic, and body text - is loaded in with TCMS 3. Does that sound right?

Is there another way to get that to work?

Thanks, Paul