The brand new (New Old Stock) milk can lifters we put into John's 261 last year were perfectly flat on the bottom- - - -I checked them with a straight edge. On later lifters, you're correct- - - -a straight edge such as the back of a new hacksaw blade or a machinist's scale should rock slightly.

There are three categories of advice:
WAG- - - -"Wild "Donkey" Guess
SWAG- - - -Scientific Wild "Donkey" Guess
T-LAR:- - - - -"Thattttt- - - - -lookssssss- - - -abouttttt- - - - -rightttttt"!

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!