The times indicate you are not double tapping, but firing two aimed shots.
The world record for 5 hits on plates at a steel challenge is 1.71 seconds, but most of us are happy to get the first shot off in that time.
True enough. That's my problem with Cowboy Action also. Something in my distant past says "verify your aim before firing". Supposedly in CAS the best say, "when you see steel, break the shot". I have to confirm in my mind I've got the sight picture. I rarely miss, but I'm slower than snot. Out of the 12 stages as EOT I only had two under 60 seconds. Some of that is equipment related (SXS I have to pull empties out of instead of dumping empties out of, hammer springs on my 10 gauge can be used as overloads on a 3/4 ton truck etc, etc) but mostly I'm just slow.