I have not changed the configuration of my target cubes. I really like the way they are set up because it allows me to add a 'shelf' which provides additional space. I have to say, they have held up very well given the weight that is on them.
Does this project or one of it's images contain pornography, profanity, or other illegal or offensive material? If so, please report it and our moderators will come by and clean it up in a flash.