A Flemish twist is much easier to make than the TBB2 shows it to be... When I make mine I take to bundles of b-50 that are well waxed, usually 7-8 strands per bundle. Starting 8 inches from the end of the bundle, start reverse twisting them together for 3 inches. then fold this over to form a loop. now match the two bundles back up and reverse twist them together, sealing off your loop. Do this same thing on the other side. Then simple twist the loops in opposite directions to lengthen or shorten the string. A finished string can be made in 20 minutes including the serving with practice. This is hard to describe without pictures so Look on youtube for some vids... There are some good ones out there. Hope this helps.
Jon
You made that sound very simple Jon. I know how to do a simple reverse twist. Once you get both loops done with the reverse twist, then what? You said "Then simple twist the loops in opposite directions to lengthen or shorten the string."
Also why do you have to have loops on both sides? Why not a loop on one side and the other reverse twisted to a length longer than the bowstring, knot it, and then use some type of hitch to string the bow that way?
And sorry for all of the many questions. Primitivearcher makes me feel like a complete idiot. I'll try not to get discouraged but when i witness so much extraordinary skill by many of the bowyers on this site, and me trying to grasp a skill they look at as easy, it makes me feel like more of an idiot.