Spitfire fuel diamond

[Graham53]

I saw this at the bike show , I didn't buy but as I don't use my bike much at the mo and lay up over winter it's been crossing my mind, I spoke to a guy at Essex performance the other week who really got animated on ethanol in motorcycle carbs, telling me how much it blocks up the small passageways and leaves a film behind and how bad it is. I don't know if he was trying to scare me to book the bike in but it made me think of this product.
Anyone got one/used one is it snake oil ? Or could it be kosher and work ? Or could it be worth a punt


http://spitfirefuelcatalyst.co.uk/products/fuel-diamond


Have a look tell me what you think