Tie up cords for the lower lamms are 33 cm and 52 for the upper lamms. When you cut the texsolv cords, if there is a closed loop right at the end of the cord – don’t use that loop either to thread the other end of the cord through or to attach onto the treadle. Use the 2nd loop from the end. If you use the loop that is at the very end, chances are it’s going to break open. The measurements are taken from the 2nd loop from the end.