Originally Posted by
Biketiger
The signal method from the league I referenced above is from their current site. They even include a nice video where they point out that the left arm signal held at a 90 degree angle is suggested to comply with some state laws.
https://bikeleague.org/content/signaling
D'oh, you're right, that was in your OP! I guess I still have leftover feelings about LAB pushing the bent-arm turn signal for so long.