I knew the Arnold sheep would Bite.... 
Looks great, lower pecs huge. If he lost the muscle the skin would sag.
Look at the following video. It looks like all lower pec, which it isn't of course, but it looks like "he needs to drop lower pec training and just do inclines." He has that little skin crease there under the pec I mentioned, which shows up much earlier in most. If he lost the lower pec muscle the skin would immediately sag more. Muscle is never a weakness, no matter where
