I do abs every day after my routines. One day its crunches. Nothing crazy. Two sets to twenty. The next its hanging leg raises. Same stuff. The third day its the swedish ball. Two sets to failure. Since I have been doing them that way I have had abs no matter what I weighed in at. Obviously at 278 they sucked but you could see four. At 237 now I can see six to eight just standing their. At 225 they are peeled to high hell. I like finishing off my routine with light abs.