Great question — answering as the UphillTech team:
I guess weight and stability are two important factors. I haven't really figured out what works best for me but when I started with squash and decided to buy rackets, I bought two rackets; one light and "agile" and the other heavier but more "stable". The reason why I put agile and stable in quotation marks is that they are rather my interpretation of them. I enjoyed playing with the lighter racket in the beginning as it was easier to place the ball with it, but then I started shifting towards the heavier racket with which I felt I had much more power in my shots, only if I could put up with the extra effort. Bottom line, I don't have a precise answer for you. I would be interested to see a...
Full answer by posdef: https://sports.stackexchange.com/a/1240 (CC BY-SA 3.0).
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