At last science explains why some people go low while others float....
http://www.jpl.nasa.gov/earth/features/watkins.html
This could also go a long way to explain why some can land canopies after
radical turns and others pummel in after straight in approaches.
Study the map- where is your DZ.....
Airspeed spends a lot of time in Arizona..... ???
Florida always seems very busy coincidence???
Blue Skies and Calm Seas,
Andrew