That sounds about average. My setup is usually 210g (blade itself is 90g). Unless I am doing my math incredibly bad, two of those rubbers on my blade would be about 200g. It makes it lighter than usual then :|
I put like 3 layers of Kailin on the sponge and it did not budge much... I bounced the ball a couple of times, it felt a bit lively. I will play with it tonight. I am going to see how it goes.
I cannot confirm that blindly, but I think that W968 and copy cats have bigger head. Rubbers from normal blades never fitted quite right. At least 2-3mm loose on each side. I do not own a W968 so cannot verify. That being said my Donic Ovtcharov No.1 was made in image of one. Compared the size...
The new batch of RXTON 9 has an orange sponge instead of a blue. The 39 has a similar texture to provincial Hurricane blue. (it has stripes that you feel under your finger.
That laser engraving is also extremely similar. I swear I saw it somewhere.