Your best bet will probably be someone who owns one, wish I knew you were lookin for this info I got up close and personal to a bunch of edges at the WAC in Lakeland.

Try
http://www.gregpoe.com/

Actually Call Zivko if you haven't they never respond via email.

Ide even try contacting Kirby someone in his staff should help you out, just let them know what your doing and usually they are glad to help.

http://www.chamblissaerobatics.com