BTW, in that pic of yours can you please point out, or draw a circle around, what you perceive to be an ab? I'm just a decrepit old fella and my eyes aren't what they use to be.
I don't want to get my camera and do all the resizing and posting thing right now but here's a pic of my arm taken just a few days ago. I sure you have a pic in the exact same positon. Post it side by side and compare and tell me how much more muscle development you have.