My biggest weakness is my abs. They just won't grow the way I'd like them to and it's quite frustrating for me. I've made some gains recently in my abs because I've been doing Roman Chair situps with a 15 lb medicine ball which gives that full stretch at the bottom and full contraction at the top which has been stimulating growth..
So my question is what would you say your single greatest contributing factor was to building a solid core. Please only reply to this if you have a legit 6-8 pack (even if you're bf is too high to really see it cause that's a different issue) but if you have a lot of muscle on your core pls share what you feel was the biggest contributing factor.