Hello, this my first post to this forum, although I have been lurking around for quite a while. I have a problem with playing with double jointed fingers and thumbs: my left thumb always bends to a right angle while playing and after a while it the middle joint really starts to hurt. My fingers aren't that much of a problem except for my pinky. My pinky constantly "locks," and I have to snap it back up again to get it to curl. Also, when it locks I have a hard time getting enough pressure on the string to get the correct note out, sometimes. Do any of you have this same problem and have any recommendations?