If one is to rely strictly on things like "slant", "Formation", etc. etc. in determining an autograph's authenticity. You'll likely succeed in avoiding the crude, average to slightly above average forgers on the ladder.
The especially talented ones have NAILED the above mentioned characteristics because they are ...to quote Mick Jagger
"Practiced at the art of deception".
Master counterfeiters whos deception is to produce fake currency can draw a twenty dollar bill FREEHAND is it not then conceivable that someone can produce an exact replica of a BABE RUTH autograph or anyone else's using known examples ?
In the book "The Art of Making Money" the story of a master counterfeiter ..I quote
"Art Williams. took to crime almost immediately, starting with petty theft before graduating to robbing drug dealers. Eventually a man nicknamed "DaVinci" taught him the centuries-old art of counterfeiting. After a stint in jail, Williams emerged to discover that the Treasury Department had issued the most secure hundred-dollar bill ever created: the 1996 New Note. Williams spent months trying to defeat various security features before arriving at a bill so perfect that even law enforcement had difficulty distinguishing it from the real thing. Williams went on to print millions in counterfeit bills"
My point being that there should be other factors at play in determining an autograph's authenticity than just what it LOOKS like. Subtle things that take years to learn because the REALLY, REALLY talented elite are not cranking out Rube Marquards, George Kellys or even Thurman Munson's or Roger Maris. They are doing SINGLE SIGNED mint to near perfect sweet spot signed baseballs of Ruth, Gehrig, Mathewson and the like that upon completion are going to command 6 figures or more.
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jim@stinsonsports.com