Grunge brush – dashed, but looks still like a whole stroke

Hello community

I'm using a fancy grunge brush (like on the left), but I want it to be streaked.
When I select the "dashed line" function in Illustrator, the line now consists of countless small grunge brushes (middle) - but I want it to look more like a long, interrupted line (like on the right, simulated with a dashed line that is superimposed). Is that possible, without workaround of a second line?

Thanks for any hints!