I am going to be installing a 16'x16' patio at my shop. I was talking to one guy that said he uses crushed stone with 1B's on top, and then the pavers. Another guy said he just uses just 1B's only 5" thick, with the pavers on top then. He said he has never had any problems and then only has 1 material to deal with. Does anyone have experience using just 1B's not not crusher underneath?