As some of you may remember, I have shot an Ithaca for more years than I care to admit. When Ithaca was bought by the town and retooled, they have tried to make their comeback by offering quality comparable to the early years. Also, they have been offering several innovations. One is the development of a barrel that decreases in bore at 4 stages along its length. They call it the "Quad Bore". Theoretically, this guides the shot to a tighter pattern, rather than squeezing it down in the final 3 inches. They offer this in a 20 ga. in retail stores, but they have told me that they can make me one for my 12 ga. in their custom shop. What I want to know is whether anyone has tried one out and how well do they work?

Thanks in advance for your input.