Our club uses the "Meroke" type stand, we have at least 10 of them. The pilot guards that were put in last summer are PVC pipe plastic fence screen. I have seen them stop airplanes with little to no damage. When I first checked out the field before I joined I saw the stands and thought that it would be nice not having the plane on the ground and not having to bring along my own restraint, (even though I already had one). It didn't take me long to grasp the improvement in safety as well. These stands have probably prevented more injuries than anyone can ever know.