As I mentioned in another thread, I bought a Bubble from Jake on his pre order offer.
Spent some time knocking it in and I've been using it in the nets for the past couple of months. It was - and still is to an extent - hard, but I can feel it opening up after 4-5 hours of nets; probably facing 400-500 balls.
You hear good things the majority of the time about the top end Kooks. There are always exceptions but you have to give it time, in my opinion. My advice? Give it a few nets, if you still don't like it and it doesn't feel like its opening up, flog it on here - someone will take it off your hands...
The £30 offer is still on the table