With a charge in the coil and the WS4 earphone, I raced to the garden to bury things and have a swing. Swing swing beep, I dug a good hole and as I took my first blind steps I couldn't work out why every clump of earth whipped above the coil made a great noise but ended up empty. After much head scratching and frustration I laughed my head off when I realised the coil was reading my wristwatch.
What a plonker
WS4 control has oodles of features though and will be plenty for me for a good long while until I get the hang of the machine. One thing I did get working was Deus fast and target separation. I dropped a silver bracelet and two coins close together and swung at speed. The U-tube videos don't prepare you for the amazing reality of the response from that tiny ear disc. Simply incredible to hear it separate and give separate tones for things so close together.