I should have perhaps used a better choice of wording, "more open", less constriction" etc. I guess I was thinking of a looser pattern as opposed to a tighter pattern. Patterning is the only real way to KNOW how a certain shotgun will shoot with that particular loading. There does seem to be a bit of difference between makers and choke tube makers as to just what any particular choke really is. IE brand X is not always equal to brand Y for patterns with a given IE Improved choke. It's all good in the end once you know your gun and limits.
