Thank you Wawa. I found that when I wound it in, clockwise, too far it was unresponsive to anything. I also found that it did not stop, but I think there was a clicking sensation, like it had actually reached the end of the threads. I was worried then because I thought I may have wound too far. It seems to have an optimum range of about half a meter, and was seemingly not so responsive when I tried to get it to 80cm, like it says on the specifications.