I have seen these guns listed in the catalog, yet every gun I see in the store has the full underlug. Is there any advantage to the full underlug design? I actually like the way the 6" barrel looks without the full underlug design. Makes it look less heavy. In shorter barrels I like the full underlug. I think it looks kind of funny to just have a small amount of barrel sticking out in front of the ejector rod. Anyway, does anyone on here own a partial lugged Ruger GP series?