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Bend angles on elevator spars

I'm working on the elevators and have reached page 09-12. Step one indicates I need to make sure the bend angle of the rear spar is 96.0* and the front spar is 84.0*.

These are rather specific angles and I've worked to meet the requirement for nearly two hours. I'm close but not perfect. At what point do I just throw in the towel and call it good enough?
 
Im just fininshing up my second elevator. Was just checking mine the other day. Using the seamer pliers works pretty good with a fancy protractor. Got mine pretty much right on. Should be pretty easy to get it within 1 degree or less.
 
I'm within 0.5+/- along each side. I was hoping that was within tolerance specs. Hope to not build in flight difficulties latter on. Thanks.
 
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