I decided to "work" with the wonkiness and let it do it's own thing. I put a 3" border on and squared up the best I could. You can't tell too much and I don't think my grandson will care :) I'm sure it's going to take some abuse so I don't think I'll worry about it...LOL.
I never buy panels so I was shocked that it was "off". It turned out pretty cute considering :)