unless i misread the op, the goal's a comfortable walking surface, right ? didn't read where they wanted to keep the look but i read fast
therefore, so what if grinding pulls ' out some of the aggregate from the surface ' ? tell me how to make an omelet w/o breaking eggs :wink2: perhaps combining grinding + overlay may best accomplish the op's goal - comfortable tootsies,,, however, w/o pics, no one really knows