Ian, certainly not aimed at you.
I haven't commented about my own preference for shot loads on this topic yet as I know shooters generally fall into one of two camps as we have seen.
So, my view is this. I will shoot a 12 if I know I'm not going to have to lug it around with me all day. I shoot a 20 when I'm walking mainly because it's light and easy to mount quickly and move to where it needs to be.
In the 12 I will shoot 32g 5's and in the 20, 28g 5's or 6's depending what I am expecting and where I am shooting.
Now the bit that nobody will want to hear (or possibly believe!) If I think a bird is unsporting, it goes by. And next the biggie!! If I think a bird is too far for my skill level, it goes by too. In the eyes of some that may be a crime, but I want to shoot things dead! If I'm not confident in a clean kill or think I may be undergunned, it goes by! And of course I'm far too tight to waste cartridges. I grew up in the sixties and my Dad gave me a box of cartidges for a Birthday or Christmas and expected a fair return for his investment! I don't think I have ever shot (or shot at) a bird, of any type, realistically further than 50yards and I probably regarded that as a fluke.
I enjoy my shooting and take extreme pride in doing the right thing for my conscience and respect for the quarry. There's only one person's decision in pulling my trigger and that's mine.
I may miss opportunities, my bag total may not be as high as some but I go home happy. :biggrin: