The most advantageous use of full choke is when you carry both normal loads and spreader loads. You then have the best of both worlds with the simple movement of shifting shells. The X-Wad spreadrs make my full chokes pattern more like IC. The NID 4E I have been shooting recently has the following options with normal and spreader loads: (right to left barrel) Mod-Full, IC-Full, Mod-IC, and IC-IC. That is all the range in choke I need - I have only to pick correctly for the kill point.