strings vibrating?

[randomname]

I recently got a new FXP radical tour and strung it with 16 hurricanes, ive been using it for a few weeks now and for some reason it feels like the racquet vibrates a bit when i hit the ball hard enough, has anyone else experienced this? is it the strings?

[dancraig]

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[@ce]

Hurricane is a bit stiff, which will cause more string vibration. Do you use or have you tried, a dampner?