I was standing there. A bump kinda re-launched you.
My first landing was way down there way before where you touched down out of respect for a new airport, unknown grass condition, power lines and trees at the far end, etc. Then I had to keep the speed with a lot of power to get to the parking at the far end on Thursday.
By the last landing after the STOL takeoff, I was flying down to only use about half the runway because it was relatively hard and bumpy and carrying power to taxi would just be throwing crap up with the prop into the tail and beating up my already weak nose strut.
The latter half of the runway is flatter with a couple of wider low spots until you get past the windsock, then a few short humps from there to the road that were helping launch the STOL takeoffs a bit.
When I went out and paced off the STOL takeoff I found a raised hump running along the runway just left of centerline up to just before the windsock that had less grass (from the mower whacking it off the little ridge) and more hard dirt. I lined up on that for less ground roll and no grass to plow through.
Being able to roll down to the parking area without adding (much) power was definitely goal on my two later landings. Brakes on finally right near the sock just to be mellow in the parking area.
In a year (or morning dew) where the grass was wetter and more slippery, you'd have to adjust accordingly.
You can see a lot of dirt kicked up on the takeoff video(s). It was dry.