I have made a lot of 12 strand strings with dynaflight 97. From the time I finish making them I get about 3/4 to 1 inch of difference. I stretch mine under 300 lbs of tension for about 2 hours. After that they are pretty stable, and dont move much at all. Some of it is just the wax in the string squeezing out, some it is stretch, and very little is creep. I have tried dynaflight 97 down to 6 strands, but did not see that much difference, and dont think it is worth the hassle of making the smaller strings. With the 12 strand strings, I dont have to double serve to get my nocks to fit, and I dont have to add a bunch of padding in the loops.