I'm at the point now where I've seen pretty decent gains from HST but I don't have very good definition. I would like to keep making gains if possible but more importantly would like to cut some fat and make my muscles more visible. My bodyfat is pretty low as it is but not enough that my abs are visible, I'm 6-4 225lbs. I've tried increasing cardio and lowering my fat and carb intake with no luck. As it is I eat very little fat, almost no sugar, very little carbs and high protein. I do HIIT 3 times a week for about 25 mins, which burns aprox 500 cals each session. Even with the lower cal diet and cardio I see absolutely no difference in my weight or appearance. Any suggestions?