I'm llikely going to have ~3.4 cGPA and slightly over 3.0 sGPA when graduating from undergrad. I did a science major and have to take the MCAT. I've worked in a research lab for 2 years (no publication), tutored, clinical volunteering, and plan to shadow as well as scribe before applying. What are my chances for DO? What types of postbacs are best for this GPA?