I'm doing the Bench to bedside with some other med students and engineering students. It's pretty fun. The involvement of medical students is fairly minimal, as the only thing we can contribute is the medical problem that will be solved. The part of the competition where all of the work happens (prototyping, developing a business) usually falls to business and engineering students. But that's okay with me, we're busy. The program is totally optional and fairly low stress. It can be really cool if you sink your teeth into it and it is fairly well organized. Most people in my class are not doing it, but a good number are.