Well after 1 month i have and test a lot of dvds and blue ray discs,I now can say that those qs8 v2 are by far better than the Definitive BP1,2X i had.
So now Iam very happy from the purchase I made and from personal accoustic experience I all can say that,YES it worth the change.
RickF last weekend i was in Boddy,s Bar in Glyfada and i remember you.
If you ever come again let me know.
Thanks everybody for your reply and I will try to post some photos from the home cinema i have.

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Harry