Potentiometer help

So I'm building 2 9 cob fixtures and Im wondering how to dim them. Each fixture has 3 drivers. I want to be able to dim each fixture but I'm not sure of the size potentiometer. Running 9 veros at 1750.

https://www.rollitup.org/t/meanwell-led-drivers-3-in-1-dimming-function.838760/

This should be all you need to read.

Three drivers- 100k pot per driver, 50k for 2 drivers, 33k for 3 drivers, and so on. If you have multiple drivers on a single dimmer and one driver fails, the whole light will go into limp mode (30 or less watts). You can also go with a 3 way switch and put different resistors on each setting (High, medium, low).
The dimmers I use have an on/off switch (off= full power) and cost from $15-$30 each, but have identical sweep. Cheap one's will be all over the place. This is what a quality potentiometer looks like.

If you don't already use them....
A "drok" meter might be useful. Set and see output, and use to confirm pot is allowing full throttle.
https://www.amazon.com/s?k=drok&ref=nb_sb_noss

https://www.amazon.com/DROK-Frequency-Multimeter-Voltmeter-Transformer/dp/B07JC6X1JH/ref=sr_1_12?keywords=drok&qid=1562182691&s=gateway&sr=8-12
I use one on a 1750 with 5 vero29's.