I finally got my euro spec RTD vanilla bottles today - chilled one and tried it. I kind of get what people are saying about the chalky gritty thing but to me, its actually like drinking a blended 2.3 Original shake in both taste and texture. As I’m used to that already - I actually found it quite pleasant. Certainly the US bottles are a little creamier and sweeter but I wouldn’t say the actual vanilla flavour is significantly different. Seems normal supplies of US spec RTD will be back in the UK fullfillment by April.