Hey, I just switched rackets about 2 weeks ago and I am experiencing some trapezius and shoulder muscle pain. I'm pretty sure it's the new racket. It's Victor Meteor Mx-70 and my old racket is Karakal Sl-70. Two very different rackets; one is quite stiff, the other has a flexible shaft. I was wondering if anyone else has had a similar experience when switching rackets. Also, it could be conditioning thing, or technique thing? let me know, and thanks!!