[lippy]

Agree with Brent. What I do is set the lash *very slightly* looser than spec, tightening the nut with a closed-end wrench (snug, say roughly 10-15 ft-lb, by feel) while creating opposing force/holding the adjusting screw tight with a T-handle. Then I check the lash again. If things didn't move and it's still good, I then torque the nut with a good torque wrench. The two tightening steps, if I do them right, will close the lash a tiny bit (less than a thousandth) and I'll be spot on at the end.