Hey, I'd love to have you over here. We're doing another burn Oct 5-6. One of this forum's denizens will show up hopefully and you'll get an objective report. It'll be objective until the slag run then everybody's mind goes on hold. Something about hot molten stuff to get the attention. Last year even the camera dude forgot what he was doing and he was looking through the lens.
There are some folks on your side of the pond who are going in the same direction. I was over in Kent last May doing a demonstration smelt. Do you have their contact info? If you connect to them, you'll be in good company for learning. You might even get to help make some and have your own chunk before I got to it.
Likely me or a couple of us will be testing such razors before long. I'll post out information as it comes up.