The clip nuts (J and U) don"t feel secure when the cowl piece is off so I decided to use anchor nuts on the top and bottom rows. I would hate to out in the field and have to remove the panel and lose the clip nuts or have the panel almost all on and lose a clipnut. I probably won"t have to remove them except for the annual but. Started installing anchor nuts on the L.H. side. They will be 8-32 screws.