I had a 330 several years ago and shot it really well, but couldn't get it to quit doubling. If I'd known where to get the trigger fixed (or better yet replaced with 2 triggers) I'd still have it. It even had 2 barrel sets, same gauge and length, different chokes.

Later, I had a single trigger gun that didn't always fire the second barrel. Some guys just can't master the single trigger, I guess.