good description of proper bicep form and technique. i like doing them on the preacher bench one arm at a time. but not to failure and certainly not partials after hitting failure. i bet your arms have been the same size for years. not that you have small arms, from the pics you posted your arms look good.
My arm size always fluctuates with my total bodyweight/bodyfat levels.
I suppose they reached their "natural" max years ago. We all know what Gh15 has to say about that. I perfectly fit his criteria.
For my height and bodyfat, I suppose my arms are pretty big. I still hear comments from people when I'm wearing a T-shirt (not a Jay Cutler approved "club T") ~ but the comments aren't flowing like they used to be. I'm gettin' old man. Sure, I'd love to have 19" guns, but I'm not willing to pay the price.
That bicep workout of mine isn't etched in stone. It's something I do every so often. I actually have the twisting handles made already. They have an outer circular ring with a bike grip handle in the middle. They are very crude.
I suppose I could post pics... but then again, what if I get a patent and become filthy stinking rich?
LOL. I'm so stupid.