I am hoping to get a RASS bench for father's day. The reviews that I have seen thus far have been pretty good. Has anyone out there used one? I want one for trajectory verification. The place where I shoot for distance is very dry and dusty when it is not the dead of winter. I have tried to shoot prone while using a tarp etc. but everything on the ground still gets very dusty. I like the fact that the legs are adjustable for uneven terrain. Any insight would be appreciated.