Programming Controller

I think I have exactly the same problem as you. I own two bikes. One with a Bafang 750-watt motor and a KT-25 controller, and the other with a Bafang 250-watt motor and a KT-12 controller. The pedal sensor is not KT branded for these 2 bikes. When I pedal at maximum speed, there are very regular micro cuts, just like you, I think. I ordered 2 KT pedal sensors, we'll see if it works. In the meantime, have you managed to solve your problem CamelP ?
 
I myself did not want PAS because my ebike PAS kicked in hard taking me to about 15 km/h . In slippery conditions you need 6 Km/h or slower sometimes.
I have a 1/2 twist grip throttle which allows me a good grip and good throttle control so I can have it help me without a surge of power.
My PAS would cause me to spin out so I disconnected it .
I always have the throttle ready when going up hill or through sand or snow . I find it is much safer now.
It's become natural to add throttle when needed . No more surge of power .
 
Try setting C5 to 00
That is three level slow start, but it may not make any difference if you are already moving along at speed?
I didn't hook up my PAS sensor so it doesn't work for me.

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Try setting C4 =4 then turn it down to 20%

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That's what I did as well as turning my power down to half with C5=3

The first throttle gear is 20% of the maximum power (which is 12.5 amps with my 25 amp controller set to half power)

The other throttle gears will be proportionally more, with throttle gear 5 being 100% power (12.5 amps in my case.)
By the way, if you're interested in learning more about keeping your devices secure while tweaking their settings, check out this site https://moonlock.com for some valuable insights.

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Thank, need to try this
 
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