That's quite an endorsement, Bill.
One of my golfing pals is a three time California
amateur champion, former tour caddy, formerly
a minus three, and he putts like that.
I have also heard of a modification, the
butt anchors in the left shoulder pocket,
but that's a minor point.
I won't bore you with the details of what I had
to do to achieve true pendulum action with the
'traditional' setup, but I can see that the single
point anchor produces true pendulum also.