Wilson: same racquets, different recommended string tensions.

I own 2 Wilson Ultra 100 (v3). Identical I pressume. However I noticed they have 2 different recommended string tensions. One has the recommended range 50-60 lb, the other 47-57 lb. See attached pictures. What is this? Never came across something like this.



 

esgee48

G.O.A.T.
Recommendations could change as stiffness changes. However, manufacturers change tension ranges all the time based on received feedback. Just ignore it unless you arer still searching for what tension to use. :unsure:
 
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