John - not sure about the practicality/feasibility of either of these moves unfortunately.
The Cross Thread looks very high on the RichterScale of potential foul ups making it a huge risk in an arena presentation.
This new one would also need a huge vertical window to pull it off - in excess of the 10 kite ceiling.
I think that David is probably right but I wonder if a little lateral thinking may be in order here. I was wondering how to 'set up' an attempt on the move as demonstrated by John, as in the two eights. It then occurred to me that 'the thread' may be more viable 'on the diagonal'. 'Windscreen Wipers' are not so far away in my view.
It may be best to leave the more 'adventurous' moves for the time being and focus on the ones that we know are flyable. <grins>
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