CAC - Have you flown the WAH-64D then ?? Maybe you should have a look sometime what is happening to the airframe. I should take a good close look at the vertical stabilizer and centre part of the rear fuselage. The machine was designed to be light -adding weight to her isn't improving whats happening to the airframe. As for your experince -mine is on the structures side so its not a matter of picking up a floppy leaflet on them - its a matter of seeing what was actually happening to them. As for relifeing -refurbishing yes -changing all the skins to beefier ones I bet no!
There is no such thing as a WAH-64D.... for us it is an Apache AH Mk1, and yes I have a lot of time in it. You don't read my posts... I agree the airframe needs to be modified and that is what FMS does. A few of the AH-64Es started life as A models!!