so you have a base of crush n run and then a layer of m-10 and you want to lay it directly on the m-10? It will work just fine, i made one around 8 years ago with grey flagstone 2" , then crushed slate in between. I put a french drain under the pathway so the water could be shot out away from the persons driveway.
Where is that one tool, that I left... At the one job.... Or maybe the other? Where am I? Whose truck is this?