I didn't get on particularly well with a traction device. I've been hanging 2 kg for long periods, 5-6 hours a day whilst working at home with a silicone vacuum sleeve that covers my head . The principle will be exactly the same as traction. I had a bend now I have a continuous curve, it is as if the bend is being 'spread out', it is definitely getting straighter. Was noticeable after a month. Good luck