Well folks, its arrived, its in, and it does exactly what it says on the tin. No complaints here.
It has to be said that I got it as a trem setter: my two favourite guitars have my least favourite bit guitar kit on them.....I got it to fix that. It does. I havent and likely wont use it to switch between fixed and floating.
However, as long as the travel of the bit thats attached to the trem is straight down the littel rod that attaches to the claw, and you have a decent stable trem, I really cant see how this thing can fail you. Its a very simple, solid bit of kit.