So I need an arm for the tremolo on my Squire VM Jazzmaster and I started thinking if its worth getting the arm, or should I think about changing the tremolo in all? I already changed out the bridge for a Mustang, and am happy with it, but since I've never had the arm, I've never really tried the tremolo on this guitar. Is the stock one any good, or should I change it out? Would an American Vintage one fit? It doesn't seem too expensive. I really dig this guitar; much more so than the MIJ one that I had a while ago. Go figure.