@DJCalebC@PeterChenMD In the interest of full disclosure, I should add that I am one of the authors of that paper. Read it closely if you are considering doing a gap, then make up your own mind.
@DJCalebC Hope that anyone planning to apply to MD/PhD programs finds the article that @PeterChenMD cited useful. Don't assume that you have to do a gap. The real answer is "it depends on your specific situation". Good luck with your applications.