Well yes, he has maxed out his chest and arms. His chest just grows depth wise, it's still narrow horisontally. Hence the "scrunched up" look.
Levrone and Flex don't have that look. They may be more or less narrow compared to other bodybuilders, but they do not look narrow because they have wider chests and better tapers.
No one cares about the actual width but how it looks, how the bellies and muscles are distributed over the sceleton.
And his arms are too big, if he'd only realize his chest would actually look better with smaller tri's and bis, if you have a grasp of what proportion is about.
Phil is also narrow in two other ways. Hip to shoulder ratio and leg to torso ratio.
Just look at any rear lat, or front lat. Or fdb. Or the relaxed stance..
One pose I give credit to Phil is the back double bi, where he manages not to look narrow. He should stand with his legs closer together though and he would look wider, he's almost spreading them like Branch..
