If its your body type that you hold fat in your middle section I'm gonna guess you also bulk up nicely, i.e. build good muscle? If you are eating to fuel a bulk phase, then focus on that. If your goal is to get the six pack, then eat to fuel that. Don't try to do both if its not how your particular body is going to respond. Body transformation is an ongoing thing - there are some people who can maintain a six pack just by thinking about it, but they will have to fight friggen hard if they want to build mass like I'm gonna guess you can. I'm not massive but I probably have bigger biceps than most "normal" guys because that's my particular gift and I"ve also been eating & lifting to build for years. When its time to cut for competition I've already got some mass to spare and then I have to fight like crazy to get down to that six pack. O well. I'm damn happy w/ my biceps tho. I'm not going to measure myself by a six pack all the time if that's not what my body is able to do. But I can achieve it if I diet & train for it.