Very good subject.I just joined your board because I noticed so many interesting debates.I was using a 3/8 for quite a while and about 18 months ago dropped to 1/4.As time went on I got Tennis elbow which wasn't getting better.Had the opportunity to use a demo which was a 1/2 (very unusual)
and after hitting three times my elbow really felt better.That was about four months ago.Never going small again.