So I've been training nearly a year now steady, and on and off in the earlier years, I've gained 25-30 pounds in this partial year btw. I have a few lagging muscles to isolate but my chest hasn't grown in months. I've tried low weight high reps12-15, heavy weight mid reps 8-10, on exercises including : flat db press, incline db press, cable flies, chest dips and some chest press machine on rare occasion. I have a strong diet , not clean, have been on a bulk since i was 6'1 143pds, now 6'1 170 and everything's been coming in strong but my chest. Anybody ran into this problem? Can anyone help?