Yeah I saw your post re that, I don't actually know what changes they've made to the Hokua. I'll try and find out, be useful to know for when I come to try and trademe my own Naish

I'll let you know what I discover.
Some low priced fins at
http://www.thepaddlecompany.co.nz/products.php?pt_id=3. Basic plastic moulded stuff, but they work fine, these are the GLs I got in my Naish right now, you can see their shape there.