Don't know who the brother is or if he advertises anywhere, but I'd probably pass on the 4-hand. That being said, I'd hire Jake again without hesitation.
Yes, he was a bit chatty at first. But so am I, so I didn't mind. Once I started to enjoy the massage and relax, things quieted down though. While I don't know if he's formally trained, the massage itself was still pretty good. And he checked in every so often to ask about pressure, etc. For me, it was a great experience.
A lot of the "yapping" about random economic stuff did come after the massage was over, but again I didn't mind. I agree that I wouldn't have wanted that during the massage, but it was good post-massage conversation.