I have 2, a Paahkeh, and a CZ. I often shoot the CZ when there is a bit of snow on the ground, and the birds are holding close. It kills roosters! The Parker, as I think I have commented on before, was "Borrowed" by my brother about 16 years ago. It's always coming back "as soon as the season is over"..I cant compare it with a 20, as I dont own one.