Hi, I am new here, but I just got MP-10 yesterday and I think I have the same problem as you do razin. I am going to take the shoulder apart today. The left arm on mine won't compress. Is it the right arm on yours with the problem? I am interested in swapping parts if you haven't fixed yours yet.
![[IMG]](http://i2.photobucket.com/albums/y26/razin7x/transformerssig.jpg)
