With such a topic so broad we truly try to cover the basics from all angles in this group. Nothing too big or too small. Nutrition is as significant if not more as exercise is to reaching your goals so learn all you can.
Isn't it true that the way to get your abs show to the point that you can see every muscle you have to have thin skin?
My skin is tight when I stand up but when I sit it seems loose around my lower abs especially. I have 8% body fat so I doubt it's fat. When i stand, look in the mirror and jump, it doesn't wiggle.
I also heard that the thin skin needed for really defined six pack abs requires the right genetics along with excercise.