Did you notice a difference between say 9 DDRS and 1 or 4 DDRS?

DDRS is the only setting that is a little hazy for me. I know it is punch but how does the esc do that? Is it frequency or something else? and is it at full throttle or also when i squeeze the trigger slowly? For how long / distance will it be?

In my pro10 i have punch at 1 or 2 as i don't want to have punch out of slow corners. I always roll on the throttle for the first meter or two so i didn't think it was of much use. I never tried anything else to be honest so that is why i want to understand it a little more.

Acceleration wise it can hold it's own against other brands but a little more understanding of how it works is interesting as well.