I can't, but there are many other reason that SOB carry is less than ideal. Here are a few. It's a gun retention nightmare. You're most of the way into an arm lock when trying to prevent a gun grab. It's difficult to prevent someone from bumping the gun in a crowd, whereas appendix, or strongside carry allow you to keep your arm in the way if someone is about to bump into you. If you have to bend over, or reach down for something, printing is inevitable. If someone is on top of you, and you're pinned on your back, your gun will be inaccessable. I'm sure it's not the most comfortable while driving.
That said I'll try to give you some good news. Many that have SOB holsters find that they carry at 4:00, or 4:30 very nicely and that it's vastly better than carrying over one's spine.