"Measure twice- - -cut once!". Set the torque tube up on a set of V blocks and use a dial indicator to check for runout, then straighten it as required. There are no shortcuts in a situation like this, and our WAG's aren't any better than anyone else's. Dave has a good point.
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!