(Scubapro) Jet Fins

Morning all.

Lost a fin on the Aeolian Sky yesterday (beer tokens for the safe
return of one Mares Volo!

Thought I might try and ditch my ankle weights by swapping to a heavy
pair of fins.

Scubapro Jet Fins seem to be "the thing", but Northern Diver do
something very similar for £20 - £30 less.

Anyone got experience of the ND product?

Are the straps similar (and can I replace them with Wozstraps?).

As to sizes, my feet are approx 10, and my boots are quite thick, so
I'm guessing XXL as popular opinion seems to indicate the pockets (on
the Scubapros at least) come up a little small. Comments?

TIA

David