Those ".050" lift" specifications were pushed by camshaft manufacturers who really don't want their customers to see how sloppy their quality control standards are. That beginning (and end) of a cam lobe is actually the part of it where I tend to pay the most attention- - - -it's what separates the really good cams from the "also-rans". "You usually get what you pay for" definitely applies to camshafts.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!