Just to let you know my  usual high-speed responses to your peronal enquiries may be affected by the fact that I am on the road, going to a series of seminars and lectures. I will be in touch (as you can see) but am not in the office. 

Will be back March 28th with  much valuable new information and research to share with you - in the meantime, the guys on the home front will take good care of you as ever.