Put this on a medium soft blade recently and am just starting to use it. First, the 10% less weight is probably true but I dont feel it. This is a great blocking rubber because it is hard. You can snap the backhand and get good directional control. Slice and chop can be done easily from any distance but it just needs more grip. Quality is excellent and it seems durable. Flat smashing is easy. No need to roll your racket. It is less affected by incoming spin and offers more control close to the table. Earlier review states forehand loop requires a more forceful stroke and I agree.