I applied to 19 MD schools with a 3.6/513 last year and only received one interview from my state school (WL/R). Similar ECs with lots of research (4000+ hrs, 2 pubs). All secondaries were completed by Labor Day. I think a mixture of bad luck, low yield schools, and median stats resulted in our unsuccessful cycles. For this cycle, I rewrote my PS and pivoted my app more towards service; low+mid tier schools do not care about research. I applied to 8 MD schools and 8 DO schools this year. Hopefully this cycle yields us greater success. 😛