Progress! The corrected threading has worked out fine: it’s a shame I can’t say the same about my treadling. I find I am slow to get into the swing of things when I am using a temple as it hides the bit I most want to see. So there has been quite a bit of unweaving, but I eventually ended up on track and (near enough!) knowing what I am doing. The colours look very different depending on the angle you’re viewing from.
And you can only see the sellotape from certain angles too 😉