Agree with Stink. I'm doing a transitional year right now in preparation for PM&R. It's nice having the elective time to rotate on rehab-related services during your internship (pain, ortho, rheum, sports, neuro, etc). Most of the transitional year programs are more competitive to land than a prelim year in medicine or surgery (shutter the thought). I'd recommend a transitional year program over a prelim medicine year any day.