I have finally got the lemo to taste good after a month a messing with it. The problem I have now is the adjustable screw on the bottom is so loose it always screws back down when attaching it to the istick and it doesnt make contact with the 510. I would have thought both of these devices being made by the same company that everything would line up well. My question is what is the best way to fix the loose screw problem. Should I try a small o-ring or is there another way? Who carries o-rings that small? Not sure but I dont think Home Depot or Lowes carry o-rings that small but I may be wrong. Is there an online vendor? Thanks