(Quick aside... I've found my debate with SNS3Guppy really interesting, but I do feel we owe an apology to FlyingKiwi for hijacking his thread. The discussion has gone way beyond the scope of the original question!
And it's so refreshing to have a good debate on PPRuNe without it turning personal in any way!)
No problem FFF, i have won my beer with said mate and learnt allot, i have also been put off flying twins for life!
Thanks all