These DOWNLOADS may be useful:

A PowerPoint presentation on leaning normally aspirated engines for high altitude takeoffs and leaning normally aspirated engines in the climb.
(NOT for turbocharged engines.)
Windows users "Right Click" on the icon above.
MAC users, "Control Click."

The GAMI lean test is for determining the F:A balance of your engine. This test is also useful in finding induction leaks.

This PDF file is a compilation of articles by John Deakin which we have found are a good prep for taking either the live or online courses.