Has used Dynaryz ACC on the backhand since its release: a speedy do-it-all rubber, solid for first opens with spin, decent blocking and counters over the table, a nice arc window and reasonable power; 47.5 degrees may be soft for a forehand.
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Calls Dynaryz ACC easily the best backhand rubber they have tried: lots of spin, easy to open against backspin, very good for blocking and creative play, with comfortable dwell; too soft for the forehand and durability is the only concern.