Im with you on the all in one session thing.I also make sure the heads spend the night in the trunk of the car the night before i install them along with the torque wrench ,so that everything is all the same ambiant temp (all hardware ,bolts ,washers ,gaskets ,etc).I also make sure that i tighten the bolts in one smooth motion .I have seen many rachet little by little till they get the "click".I avoid it...