Information from GMK leads me to believe ALL the Tikkas are now coming into the UK screw cut, not cut is now special order. The cut Tikkas also have a shorter barrel so this helps with the balance with a mod. Mine is a full length barrel which I had to pay money to have screw cut, should have had the barrel cut down a bit to, still thinking about it!
As far as I am aware, just as Mr Logic says the RWS are screw cut but check with the importers, Ruag!
Despite what they say the Predator 8 is slightly heavier than the T8! I am still not happy with the balance of my T3 synthetic so a