Adafruit vs DK

Being trying for a week to get the wind option working and it never did until I used the DK option

The Adafruit dont work (guess I have DK Shields)

Now I am getting there.

Issue is the fans spin at full speed in idle and not at all if I use only in race.

In the race with idle active just full speed  

When Using the DK shield should I use the:

SHAKEIT PWM outputs or

SHAKEIT FANS PWM Output

(Using The Noctua A14 Fans) 

What is the difference between the two options.

Thanks for any guidance