What if you shadowed a DO cardiologist who didn't use OMM at all and got a letter? I told my MD cardiologist that I was interested in applying DO as well and he set me up with this DO to get a letter which was awesome. We talked and he said he'd write me a letter since DO schools need them anyway. Both are terrific docs but should I feel like I'm missing something? Will I be at a disadvantage if I did not witness OMM?