Signaling Delayed FT Violation

[Rick Durkee]

While the ball is at the disposal of the thrower during a free throw, the trail official sees a lane violation by a player on team B. It seems to me that the official should give the Delay Violation signal with the hand farther from the end line? If that's true, should she/he also continue the wrist flick count with his arm extended? Is there another way to do it?