its probably ok, but the wording to the advert is appauling, and that's why it looks a bit iffy... English lit-"must try harder"

 

I spotted the problem some time back with the screws and bought some counter sunk screws with no magnetic signature for those that want to be not seen, then some steel round heads for those I wanted picking up.

The pectel has a lot of control parameters to get a good clean signal from these that means you can run the full sequential set up.