I did not, by any stretch, mean to sound braggadocios. If I did I offer my apology. My duck shooting with tight chokes is just an extension of my sporting clays shooting for 20+ years with "tighter than usual" chokes, and my distaste of opening choke constrictions on vintage guns . It is my personal opinion that using tighter than needed chokes will make a better shot of you.
That said, I am beginning to have questions about the use of currently available bismuth through very tight chokes, and the issue of it fragmenting. I will be doing some testing in the near future to try to determine the extent of it in my guns.
Good hunting to you as well, J.B.