Not bad for an eyeball job.
But better yet, when I later closed on another control point I only missed by 0.09'.
I wish I could attribute this to superior expertise, but I think sheer dumb luck played a larger role.
I use my Pocket Silva Ranger to get a bearing for the first backsight, just to be roughly close (nearest 2 degrees).
It is surprising how often StarNet will report the Silva Ranger bearing is within a few minutes of reality.