Is it useful, practical or even a good idea to lap 2 identical stones against each other with a little abrasive in between ? Both have been previously lapped using 14 micron diamond polishing compound and I'd like to go up to 7 micron or possibly 3 micron. I'm not talking just sawing back and forth but careful circles, 8's and end swapping , making sure all surfaces are getting contact. My assumption is that finer grits there will be less chance of getting something out of whack.