ABS Air gap Setting need some help

Tring to understand this setting per the manual, can anyone shed some light or better yet measure off a known good bike your current setting.
Reason is they state a range of 1.3mm to 1.9mm then it gets more confusing.
Below is copied from the manual Its the note section that confuses me.


Adjusting the AIR-GAP of phonic wheel sensor

(For front as well as rear sensor) In each case of maintenance that foresees:

- replacing or refitting the wheel;

- replacing or refitting phonic wheel (5) or (6);

- replacing or refitting the brake discs;

- replacing or refitting the speed sensor (1) or (2);

- (front) replacing or refitting the sensor holder bracket;

- (rear) replacing or refitting of the calliper holder plate.

It is necessary to check the air-gap between the speed sensor and the phonic wheel, once the components are

refitted.

There must be a gap between ABS sensor (D) and phonic wheel (E) of 1.3 mm to 1.9 mm. To check it, use two

feeler gauges (F)

of 1.3 mm and 1.9 mm. If the Airgap is correct, the 1.3 mm feeler gauge must not pass.

Note

Perform the test in three points of the phonic wheel, at a distance of 120° one from the other.

To do this, use two feeler gauges (8) of 0.2 mm and 0.5 m.

Important

The sum of the feeler gauge must never exceed 3 mm.

a credit card is 0.5 mm and two should fit loose by 0.3mm. 4 cards should not fit with printed not embossed/stamped numbers.

the tone ring should be flat so one should check multiple points.

most 'feelers' don't come with huge thicknesses so they might have meant 0.8 and 0.5

To do this, use two feeler gauges (8) of 0.2 mm and 0.5 m.

Important

The sum of the feeler gauge must never exceed 3 mm.

*This is the part where they lose me It reads use 8 feeler gauges??

If anyone can measure one of their own bikes that would be greatly appreciated
Thank you

The 8 probably refers to figure 8 in the real documentation.