Thank Jeff,
I spent a couple of hrs today just "twiddling the knobs" and trying to get the machine into a more settled state. I left sensitivity at default 95. I note that reducing Reactivity does help a little and there's not a lot of ferrous trash to work through so it's manageable. Thanks for the tips, I've still got my original Deus 1 with the 9" white elliptical, I might try it over the same ground next outing and compare the 2.
Regards Graeme