hey up love
i asked my fella about his one
him being a boxer and trainer
and ripped really well(i hardly notice it anymore though lol so there's a helpful hint for u )
he said it really does have a lot to do with genetics
he's had his since secondary school and hardley does sit ups etc.....
he just has minimal body fat etc...
you cant make the abdo muscles so huge that they show through anything water body fat all play a part
i'll send you a pic through email hitman