Okay, I've been doing a lot of internet searching and I was surprised at how big a split there is on this question:
Do you lose torque when tightening a bolt or nut using a straight extension?
A lot of people say something like this: You should add X ft-lbs for each 6" when using a torque wrench with an extension. The reasoning is that you lose torque in twisting the extension. A lot of people say you don't lose any.
I'm really curious what you all think. Please throw back a reply and give your justification, or just participate in the poll.
EDIT: For the sake of simplicity, for the poll I'm asking about tightening a bolt with a torque wrench, and whether I'd need to increase the setting on my torque wrench if I slap an extension on there. But feel free to throw in your thoughts about the same question applied to an impact.