I just started working out again and have been at it now for 3 weeks. I just want to ensure that I am targeting my abs right in order to get the lower half showing. I try and do abs after every workout and start with hanging knee raises, then I have a machine at the gym that targets the oblique muscles and then I go and do incline crunches and start my rotation over for about 3 sets of 15. My top abs are starting to show I just have a small layer of fat on my bottom abs. Thanks ahead of time for the advice!!!!!!!!!!