I found it difficult to get the needle turned to the angle I wanted. I used to put a pin in it to see the angle, but that did not work out too well for me. Was at the Schaumburg IL quilt and sewing expo and ran into the Cathy with At The Heart Of Quilting and she showed us this neat little magnet which latches onto the grove in the needle and provides a visual of the degrees the needle is turned.
I think the picture will describe what I'm talking about better than I can.
Thank you Cathy for providing this.