Hi Rodney,
I live in mid Bedfordshire and am part of the Herts & Beds Local Group, but if you looked from Royston (I know it's hertfordshire but only just) through to Duxford you would probably attract some of us.
Once a month is probably about right, the Hert& Beds meet the 1st tuesday every month at The Two Chimneys Stotfold Road Letchworth, the Essex Group meet the 3rd Wednesday at the Chequers Matching Green as Tim pointed out.
And I see the Cambridgeshire Group Night is the last Thursday, so you wouldn't have any conflict there.
Brian
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