visit the store http://weldmongerstore.com/
see a more detailed article on this http://goo.gl/Udqo9y
The 4g overhead welding test is often given along with the 3g vertical plate test. The same tips for the overhead weld test apply to pretty much any overhead stick welding.
Set amperage to hot enough that the rod wont stick even when you hold a tight arc.
then hold a tight arc.