Has anyone compared the aerious 1 and 2?

I currently have an Archimedes I, in SMT but it's slightly too big for me, let's in a fair amount of water and I get slower.

HUUB are completely out of stock of the ST in the Archimedes and aerious II

I have seen a deal on an aerious I for half price, but I don't want to get a significantly inferior suit for the sake of £50 (this would be the difference between the aerious I and II as I have a discount for new from Huub)

I tried on an ST Archimedes and was shocked how much more flexible it was than the Archimedes I