Wyatt,
I see nothing wrong with chasing threads with a quality tap and die set......you should know if you are taking off metal or just cleaning threads if you have any experience with using a tap/die. I would rather see them chased then have someone cram a stud/bolt into a dirty gritty hole.
My whole point about the use of anti-sieze/oil (whatever) on threads was that the process of torquing the fasteners consistantly is more important than the small variation in the actual value that the lubed threads might create.
The spec is 25-30 ft lb.......your spec is "reduce by 10% for lubed threads"......so my way could be 3 ft lb high...well within the tollerance range.
I won't argue that chasing taps, certified torque wrenches, etc. don't have their place in this world. But, for the guy who is just de-carboning the head on his Kohler and reinstalling the gasket with a beam style torque wrench, oil/anti-sieze, 3 ft lb variation, chasing taps etc. isn't going to be as significant in the final outcome as a good, consistant procedure for torquing down the head.
my $.02, YMMV, IMHO, whatever else applies, etc etc etc