Here's the reply from Mike's XS about the 64 spoke wheel kit lengths: Thanks,
Joe
[FONT="]Ok 1st of the inners is 7 ? inches long the 2nd inner is 7 ? inches long. The 1st outer is 7 3/8 inches and the 2nd is 7 5/8 inches long they are all within ? of an inch of each other (that?s total length included threads). You have enough threads to adjust in up to ? inch on each spoke.[/FONT][FONT="]
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Looking at these measurements I think the Mike's XS spokes would work, depending on how they measured the length. If measured from the center of the top to the bottom of the threads the GS750 spokes are about 7 1/2 inches long. The 64 spoke XS kit lengths range from 7 3/8 to 7 3/4 inches. You could probably use the 7 1/2 inners and two of the 7 3/4 inners which would likely need to be trimmed a bit. You could probably use the 7 5/8 outers with two of the 7 3/8 outers. These are a bit more expensive than the GS750 spokes, $71 vs. $54 but are stainless and you would have plenty of spares. One thing to check if going this way would be wire diameter. The 64 spoke design might use thinner spokes.
Thanks,
Joe