hi, thanx for your tip. the stuff i was planning to sew was a german bajonet frog and and a copple german field shovel covers.maybe later some frence field gear. i think the problem is that the 205-307 is so strong that none of the linnen thread will do, but i also my be wrong. maybe i should ask one of those who own a 205-307 if they have eny experience with this stuff.