"Something which the RPT could discuss, perfect and roll out to clubs.
Andy"
Not just the RPT members but also all the independent turners.
Turner 1 doing demo for club is not a problem if they have the right kit (cameras, mike and broadband). Club may have an issue with laptop/projector and screen for viewing. The need for a roving mike has been pointed out - yes, that can be taken care of by using the small wireless mike usually placed on the demonstrator or as we would do, plug in the main mike to the PA.
Time zones can be an issue but with the USA -8 to -6 hours behind and Australia + 10 hours ahead of GMT, it does need a bit of planning. Took me a while to sort out a time to talk with my man in Sydney recently!
As for tea breaks, you can stop the call and call again.
Will be interesting to see which UK club is first with a skype demo - they have already been done in the US.