I am following the instructions, tells me to drill a 1/4 hold for the stud. Cam lock stud does not fit flush. Do I countersink the 1/4 hole so the stud will sit flush? Or do you drill the hole bigger? Also does anyone know the part number to change out the cam lock to wing style? I picked up my kit in June of 2019 and the camlocks are SKybolt cam locks. I think I need part number ZG2600-1w to change them to wing style. Seems silly to have to get a screw driver out every time you want to check the oil? Am I missing something?