Well, after reading some insightful thoughts on opening chokes on my Ugartecha and some soul searching, I ended up having the MOD/FULL opened to Skeet 1 (.005) and Imp. Cyl. (.010). I've found that using BPI Brush wads and lead 7.5's gives me true 005/010 patterns that should be just the ticket for early season forest grouse. If I switch to Red PC's and nickel 7.5's I get something approaching Imp. Cyl./Mod. patterns. Perfect for what I was looking for. My latest gun is usually my current favorite and will get extensive use on blue grouse/prairie grouse/woodcock and ruffs this coming Sept./Oct. And yes, Ted, my Ugglie looks a lot like the one you pictured. Now comes the next decision, do I put a recoil pad on it to tame the recoil on a 6 1/4# gun that has some significant recoil with 1 1/8 loads? Or, do I back off to 1 oz. loads which are comfortable to shoot as is.
