If you've been training for quite a while now, you're probably experiencing a slowdown of size gains, which have become increasingly harder to achieve with your regular training style. (fitnessandpower.com)
According to research, using a thicker bar leads to greater muscle fiber recruitment in the arms and thereby faster muscle size gains. (fitnessandpower.com)
That depends on your goals — if you're looking for size gains, you'd be best off with 30 - 60 seconds of time under tension. (fitnessandpower.com)