well to break a plat you will have to change a little an put out some effort.. on chest id try the 5x5 for a little or switch to dumbell presses. id add squats and deadlifts to the routine, that will help your body over all get stronger. legs respond better to higer reps to. your 10,8,6 is good for main parts, but auxiarly(however u spell that word..lol) you will wanna use the same reps, they are more for shapin the muscle, not growth, they do help grow, just not as much as core..