Hi Marshall Fire,
Shotgun Boogie also does a great job on setting up an SKB for Cowboy Action shooting. Typically he will shorten the barrel to your desired length, add a bead, hone/funnel the chambers, install mechanical triggers, and adjust the lever (including a quick and smooth release).
It is worth having an a SKB expert work on your shotgun. Doesn’t matter if you are fast or slow shooter. A shotgun that has been worked on by the experts mentioned in these posts will be a pleasure to use and will help to reduce your stage times by making it easier to open, load, and shuck. As a result, transitions can also be smoother/faster.
Just my 2 cents.