All Vince has to do to improve his build immensely,is to diet down,do lots of cardio,and train his entire body with moderate poundages.
For a guy that owns his own gym,he could do this in 60 minutes a day or less,for 5 days of the week.
This takes a lot of comittment,much more than a pipe dream of just building arm size that is mostly just useless adipose tissue.
I`d rather be small and lean with a 14 inch muscular arm than overweight and soft with a fat 20 inch arm.
Fuck all the ridiculous training theories,just train hard,eat right,and do some walking on a fucking treadmill.