Yes, rarely if ever have I adjusted any of my truss rods more than a quarter circle in one direction. I tend to stick to the recommended .010 of an inch neck relief, and only adjust when the relief changes from this figure. A quarter turn (90 degrees) on a Taylor truss rod tends to change the relief about .002 to .003 of an inch, which sounds like a very small amount, but it really is quite a lot. But, like I said, this really isn't the method one should use to adjust the action.
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Jerry
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