I've done more than I care to remember....on and off the car. I like to drill the holes as close to the staple size as possible. Just a few thou larger. It will hold the staple in the apron a bit tighter making it eaiser to install.I also drill all the staple holes first.I begin by installing one at around the 12 o' clock area then go to the front and work my way around. I use a homemade thimble around two of my fingers. One to hold the staple from the underhood area....the other to start the bend in the staple.After the bends are started you can completely fold them with a screwdriver or squeeze them shut with a pair of the small Vise-Grip clamps...Once you get the hang of it, it goes fairly easy!FYI...buy more than one pack of staples. One bag is hardly enough to properly due the job.I like to replicate the angle of the staple gun as well.If you pay attention to the way they were shot from the factory there often shot in the same direction.Vary rarely are the shot in a perfect - - - - pattern around the wheel house.Good luck!
Steve
