Sit with eyes closed with either gun across your lap, rubbing and feeling it, while recalling the good times with your uncle. Can you picture him and yourself, afield with which of the guns? That's the one to pick. It seems you're going to enjoy the Mod 21 most because it's the field gun. The Parker, on the other hand will be a pig on the sporting clays field, with it's tight chokes and long barrel, relegated to the gun safe, hardly used, if ever. I believe, your uncle would want you to hunt with whatever gun you choose, fondly remembering the good times you shared.