What to use for Merlin TSM stand mounting

3rd the use of blu-tak under the speakers to attach them to the stands. I'm using this for my Tannoy DMT10 speakers. In fact, the Tannoy user's manual expressly says to do this - says that's the best method w/o altering the sound.

another suggestion re. filling the stands: I used kitty litter. It is granulated clay & it is mich bigger in size that a sand granule so it has the tendency to stay inside the hollow tubes of the stand rather than leaking onto your carpet or floor! Kitty litter is just as sonically dead as sand & also does a great job preventing any ringing in the hollow tubes of the stand. It is also very cheap. You do not mess up your hands just in case you need to handle it. Also, it is not toxic (& even if it is, it's not any more than the Clorox you already have in your house). FWIW. IMHO.