I've been doing the 5x rule for the thread...it has always left me with ample room to move the needle around a bit, so I don't develop a weak spot from the same thread point going through each pearl. Katbran, I've been using my dining room table to string my pearls...I lay out the thread and try to keep it straight on the tabletop. If I let the thread dangle down below me (say sitting and let it drop to the floor), it invariably becomes twisted and tangled. It takes a little bit more time to keep the thread laying flat across the table, but it makes it so much easier not to deal with tangles.