I think shadowing a resident is great but I don't think you need to push yourself to shadow a DO physician unless you can shadow someone in private practice that may practice osteopathy a little more traditionally, ie. practicing OMM on patients. I think whether you shadow a DO physician or a MD physician who works like every other physician isn't what makes the difference; it's more about what does the DO physician do that makes him/her different. I am not saying that you should only seek out a DO doc that practices OMM (I am a resident that does not practice it), I just think if you're goal is to get a true experience of shadowing a DO whether it is for your personal benefit or for the application, if you really want to see what osteopathy is about, I would seek out someone that is truly practicing it.