Stop in for a cup of coffee

So I know this has been a topic on here before but I need some pictures of exactly what some of you have done to compress the 5 mph bumper shocks. I had the boy drill holes in them near the back of the brackets...expected oil to be in there and, there wasn't any. Did I have him put the hole in the wrong spot? I have also heard of taking the guts out of them?? Not real sure how ya do that?
You have to drill them to release the pressure, compress them and then weld them to stay in the new collapsed position.

Just drilling them doesn’t collapse them, they have to be compressed in.

They are just filled with air.