6g and 6gr

by Saul
(odessa, tx)

you've probably heard this one a million times but here it goes the one million and one. whats different about a 6g and a 6gr test? i may have an test comming up for a new job and just need to to know what i can expect?

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I am uploading a quick sketch of a 6GR. generally same as 6G except for a restriction ring to make it harder for you to see.

What sadistic bastard dreamed this one up?

Jody