J*****o
发帖数: 1129 | 3 do not believe what tennis warehouse says----差别太大。
【在 b*e 的大作中提到】
: There are manufacturer flex rating, which is unstrung flex rating.
: You know, there are manufacturer quality control problem, so the actual
: rating could be off.
: Usually tennis warehouse measures its actual flex rating (not sure it's
: strung flex rating or unstrung).
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