You're most welcome. I can see that your past contributions have been thoughtful as well as informative. Reading some folk's comments, it is evident that they rush into things and express themselves carelessly without reading what they have written. If we were to pick them up on their unpunctuated comments and misspelt words, they would probably take great exception! Let's keep up the helpful dialogue. Those with a professional and personal interest in aviation matters stand out from the folk on the other side who struggle to offer anything really worthwhile.