These Lucas points show the differences required to allow for different rotations. The fibre heel on the moving point should always be' pulled' behind the point's pivot point - never 'pushed' ahead of it. Knowing this, it can be seen that the points shown on the left rotate clockwise, those on the right rotate anti-clockwise. This is where confusion can arise. Yes, the points on the left rotate clockwise, but are fitted to an anticlockwise magneto.