I have access to a 1980s Citori, and already have a jellyhead for it. Will probably use jellyhead in the top barrel for distance, regular full or modified choke in lower barrel for close in shots. My idea would be to use Fed HW #7 in lower barrel. That load has plenty of small pellets for close coverage, yet their density could provide enough energy for a distant, follow-upshot if top barrel fails to drop a bird.
Yea. I like the idea of a two barrel gun with different chokes.