John,

You said:

"The debate continues with tradition (it seems) on one side and the
numbers on the other."

Actually, tradition would dictate that we run LOP -- the science,
engineering and techniques to do so were worked out over 50 years ago when
the big radials ruled the skies!  Go to AVWeb and look over John Deakin's
articles about leaning.

http://www.avweb.com/news/columns/182146-1.html

Mark Sletten
Legacy FG N828LM
www.legacyfgbuilder.com