A great idea - but perhaps it should go even further and, if there are enough perhaps a booklet of XMTS dances? Or even, if there are enough dancers in one area, an XMTS dance - some from the XMTS list and the rest presumably made up of such things as Makin the Tartan, The Kiltmaker, The Waggle of the Kilt, Come under my Plaidie, St Andrew' Flag, Saltire Society Reel and Saltire Strathspey ....

In the meantime, as my first attempt, how about:
XMTS - 3 couple longwise set, Jig, three times through

1-8 1st couple cast one place, set advancing and turn back to back to double triangle position. Dance first half of double triangles (i.e. set facing own side, dance round each other to face opposite side) [X]
9-16 Ist couple dance out on opposite sides, cast up into 1/2 figure of 8 (end own side 2nd place) [M]
17-24 1st couple turn the 3s with appropriate hand to go outside them, dance towards each other, turn right hand to take promenade hold and up centre to 1st place (dancing out to own side on last step of the phrase [T - yes, it is upside down]
25-28 1/2 parallel figure of 8 on own sides, 1st give left shoulder to 2s to begin
29-32 All turn partners right hand [full stop at the end]