So I have been dieting and working out for about 8 weeks now and I'm seeing the results FOR THE MOST PART. My arms are veinier than ever I'm talking bi's tri's shoulders forearms all of them. But for some reason my abs are showing no signs of improvement. I train them 4 times a week Mondays and Thursdays is "core" (planks, obliques, lower back) Tuesday Friday's is abs(upper and lower) I'm using weight doing 12 reps for 3 sets and 4 or 5 exercises per day. Am I missing something? Why aren't they getting as defined as the rest of my body? Am I overdoing it underdoing it? not enough reps or exercises? Thanks for the help.