Originally Posted by
andrewM
Thanks Ggggr - very constructive and helpful comments.
You are not treading on Vic's toes; he agreed that I should post the problem on the site last week as, otherwise, I would not have done so. I think it is a challenge to us all and Vic, who is baffled, would welcome a solution as much as I would. It is certainly not straightforward.
Do give him a call, if you are happy to do so - it could be helpful to run your views together. I think this is one of those rare problems where two brains are probably helpful and he spoke well of your earlier call.