Theo,
I have the MGOC tool which I find is very good with one important fault -- There is no protection for the spinner in that it is a metal to metal fit which will seriously mark the spinner without some protection. I have glued some old bicycle inner tubing to the tool which I hope will sort this out. Otherwise I'll have to think again.
The tool you sell I expect is very good, but is WAY too expensive -- I couls afford to rubbish a few sets of spinners and replace them for the price of your(no doubt excellent) tool
The MGOC one was approx €50
Cheers!
