Originally Posted by
jonwvara
I seem to recall Jobst Brandt or someone sternly (he was stern about almost everything) advising against that. The idea was that the proper amount of torque at the initial tightening would push the arm onto the taper as far as as safe, and that further tightening later risked expanding it too much and causing it to crack at the corners of the opening.
Does anyone else remember that? Maybe I dreamed it.
Your recollection is correct. But if you have a torque wrench you can check the torque without driving the arm further onto the spindle. Just apply the recommended torque; if the bolt doesn't move, it wasn't loose. If it does move, you just restored the proper torque.