Several months ago I tried the titanium coated topstitch needles from Organ on my shortarm and they did not work for some reason...I checked the usual things such as tension and so on but the thread kept breaking. I tried different threads with the same result, so I went back to the Singer needle I had been using and things were back to normal. Now that I have my Bailey, I will be trying the titanium coated needles from Superior on my next project (in progress). I'm hoping for good results, smile.