On page 10-14 step 2 it has you countersink the #40 holes in the longerons to fit dimpled skin... got it... what about the #40 holes for the nutplates? On page 10-20 there is a note that says ?nutplates installed on the longeron are not dimpled. I am assuming that they are referring to the #27 screw holes and not the #40 nutplate rivet attach holes.... confused as usual....