I’ve got a work event coming up, a Trap shoot!

not know where to start to explain it to you. Pick a shotgun that fits you well regardless of the gauge. fit is key so the gun shoot's where you are looking. Choke can be mod thru full depending on the distance behind the trap. As George Digweed says " I like to shoot in front of them and let'um fly into it" a short phrase that sums up the entire sport of shotgunning.
Don't over think it Scott, just go have some fun with it. The soft focus idea is to hold the gun above the trap house and dont focus on any object, the first object you should see is the target appearing over the gun barrel. The reasoning behind this is to not have to break your focus and re-establish it on the target, takes too much time. when you reach the target shoot it, your first impression is usually the best one. dont aim, look at the target not the barrel. As a wise gentleman once told me, "If your looking at the barrel, you aint looking at the fucking target" hahaha his exact words

but I pretty well wore out an SKB model 600. When I decided to try trap they told me not to worry about where the bird was, to shoot to a spot where the bird would fall into the pattern. That was why the gun had a huge rib on the barrel that sat an inch or more above the bore. He said it was a thing that I would pick up and it would be just natural to me. After thinking about it a bit more I decided that things don't always just come naturally to me so I decided against it. So, good luck.

So go through a setup. Before you call “pull” , mount the gun, point at a corner of the trap house, close your “off side” eye and make sure you are aiming at that corner. Make sure you eye (the rear sight) is centered. If your eye isn’t centered, put more or less pressure, with your cheek to get your eye centered.
Now open both eyes, focus your eyes low in the rectangle where the berd will be. Hold the barrel at about the top of the trap house so as not to block seeing the bird when it comes in to view. Bend your knees slightly and swing with the bird when it launches.
Depending on how much of the rib you see (with gun mounted and one eye closed), is how much daylight you see (if any) between the bird and your bead. If you only see the bead, you will probably have to cover the bird with your barrel, if you see about 8 inches of rib, you’ll have a little daylight between the bird and your bead. If you see the whole rib, you’ll have to hold way under the bird.
When the bird launches, focus HARD on the bird. For starters, i would hold slightly in front of the leading edge. “Shoot’em in the lips”, but it depends on your position, and where the trap is pointed, when you call “pull”. The trap is moving back and forth constantly.