Latt- I'm glad to see the water brake you put in there. I think it's a great addition.
The ones I put in on the hillside on my beds have been very effective/ There's been some torrential rain last summer before the real dry we had, and some mthis winter as well. I've got zero erosion damages from the weather.
since I have many beds on the hillside, there's brakes above and below each bed. So the below brakes also catch leaves when they wash down, which is a plus.