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Thank you. I suspect the answer is revealed in the fact that nobody has complained that sealing adversely affects the touch or feel of the wood. The benefit of sealing must outweigh any fear of changing he characteristics of the blade. One other question, some users have mentioned that the low throw is more problematic on the backhand. I have considered trying a high throw rubber, Yasaka Xtend SD on the backhand side and 729 Battle II on the forehand. Any opinion?