SeniorRecPlayer wrote:
How much could I expect Cobalt to be different from A-1.2 A-1, other than the speed, spin and control ratings on Megaspin?
Well, Cobalt also has two versions, just like A-1.2; there's Cobalt X-1 and X-2. Yasaka sure does like to make things confusing
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X-1 has the longest pips of all Yasaka's hardbat rubbers at 1.4mm (A-1 is 1.2mm), and X-2 has short pips at 1.0mm. Since Cobalt has a thick rubber base instead of a linen backing, I would expect it to be bouncier, and Yasaka's own ratings for their rubbers lists it as being slightly faster and spinnier than A-1.2.
If you get Cobalt, make sure to ask whoever you buy it from if it's the X-1 or X-2 version, which should be visible on the rubber through the packaging.