Landscape Spline - Mesh Order


I have a question about the spline tool. Is there a way to adjust the distance between the meshes, which I want to array along the spline/path?
Here is a screenshot of my problem. The Planes are actually just placeholders for my 3d gravel. I get the holes also with the gravel and I think it has to do something with the bounds of the mesh. If there is no way to adjust the space between the meshes, is there a way to fit the bounds to the mesh exactly?
Thank you in advance! :slight_smile:

No one? :frowning: