Good work, charlie b

By the way, I don't think you can ever get over 'getting lazy' or losing concentration about set up occasionally.
I still find that when I am shooting really well, I sort of expect everything to go right and begin to let my concentration lapse.
Sure enough, things begin to go south until I get myself under control again and get back to concentrating.

Lately, when I am shooting well, I have become more cognizant of that trait and try to avoid letting my concentration lapse. It often works, but it doesn't always.