Thanks Max, that's consistant with NGK's chart on their website (18-21.6) for 14mm plugs in aluminum heads. Web forum opinions on using anti-seize on spark plugs in aluminum heads are all over the map and there are some that believe NGK's anti-seize position is a CYA against liability for damage caused by over torqued plugs. There's no concensus on how much the torque spec will be out with wet threads only that it could be from 10-30% greater than torque load indicated, but I don't know how they know that? Additionally my torque wrench ( 10-100 ft/lb range) is accurate + or - 4% at 20% of full load (18ft/lbs). In all likely hood I am overtorqued but not by much, too much? possibly. Maybe best case senario is I'm at the top end of the range. Also, using socket extensions adds to the torque load and there is a calculation for that too. Interestingly, NGK says plugs that have crush gaskets can be re-installed after removal by tightening them 1/12th turn after gasket contact. Who knows what that torque value is? So, if I remove the plugs, clean off the anti-seize with brake cleaner and re-install per NGK recommendation, I still won't know what torque the plugs are at? Will the anti-seize left on the head threads cause an overtorque condition? Yes, I have found a source on line that sells replacement spark plug gaskets (crush washers) but removal of the flattened ones will likely bugger-up the spark plug threads. Many on this forum have advocated using anti-seize on spark plug threads, but made no mention of what torque value they applied. I'd be interested to hear of their experiences. So, very likely I'm making a mountain out of a mole hill and yes, I am obessing.......but what else would you expect from a Crossfire ( make it 2) owner.