Well there is certainly no harm in digging deep Chuck. We are now onto 11 pages of debate yet the first posts to even attempt an explanation are #195 and #201. I looked at your profile and its clear you have a wealth of experience to offer and bearing in mind this is a private pilots forum, why not clearly explain your method to help them.
Great debate by the way!
Last edited by sapco2; 8th Feb 2014 at 16:42.